CN206215036U - A kind of container-type bacteria bed - Google Patents

Abstract

The utility model provides a kind of container-type bacteria bed, belongs to VOCs treatment field, can be readily transported, and can be directed to emergency condition efficient process organic exhaust gas.The container-type bacteria bed, including casing and filter element, exhaust gas entrance and clean gas outlet are offered on the casing respectively, the filter element include carrying out waste gas pre-filtered filtering module and to being filtered by filtering module after waste gas carry out the bacteria bed module of biofiltration, wherein, it is provided with circulated sprinkling unit above the bacteria bed module；The inwall of the casing is provided with heat-insulation layer, and is additionally provided with solar energy heating unit in the exterior top surface of the casing or side.The utility model can be used in the emergency processing of organic exhaust gas discharge.

Description

A containerized biological filter bed

technical field

The utility model relates to the field of organic waste gas treatment, in particular to a container-type biological filter bed.

Background technique

In chemical industry, paint making, coating, municipal engineering, sewage sludge treatment and other industries, a large amount of VOCs gas will be generated in the production process, which will not only pollute the surrounding environment, but also cause serious harm to human health and ecological environment . There are many technologies for controlling VOCs gas, such as catalytic combustion, condensation, adsorption and biological methods. In comparison, the biological filter bed has the advantages of safety, reliability, simple equipment, low investment, low operating cost, and no secondary pollution in the treatment of malodorous gases in VOCs.

At present, many patent applications have reported on biological filter beds. For example, patent application CN 102764585A discloses a suspended biological filter bed for treating organic waste gas, which can be used to purify organic waste gas, but the suspended biological filter bed is usually fixed. On the construction site or in the machine room, it is not easy to move, so it cannot be used for emergency treatment of malodorous organic waste gas, and when the temperature is low in winter, it will directly affect the biological treatment effect because it cannot provide sufficient energy for the biological filter bed. . In addition, the patent application CN 204529438U also discloses a biological filter bed with a modular packing layer. Although the biological filter bed is beneficial to replace the packing, it is not convenient for the transportation of the whole set of equipment and cannot be used for emergency treatment. Therefore, it will be an important subject of research in this field to provide a biological filter bed that is convenient for transportation and can efficiently treat organic waste gas in emergency situations.

Utility model content

The purpose of the utility model is to provide a container-type biological filter bed, which can be easily transported and can efficiently treat organic waste gas in response to emergency situations.

One aspect of the utility model provides a container-type biological filter bed, which includes a box body and a filter unit. The box body is respectively provided with an exhaust gas inlet and a purified gas outlet. The filter unit includes a filter for pre-filtering the exhaust gas. module and a biological filter bed module for biologically filtering the waste gas filtered by the filter module, wherein a circulating spray unit is arranged above the biological filter bed module; an insulation layer is provided on the inner wall of the box, and A solar heat collection unit is also provided on the outer top or side of the box.

Optionally, the filter module is a one-stage or multi-stage filter, and the filter is selected from one or a combination of pipeline filter, plate type, bag type, filter element or packing filter; wherein, the packing The filter material in the filter is selected from one or a combination of activated carbon materials, molecular sieves, silica gel or honeycomb structured packing.

As a preferred solution, the biofilter bed module includes sequentially from bottom to top:

A transition buffer unit, which includes a heating pipe, and the transition buffer unit is used to adjust the temperature and humidity of the exhaust gas filtered by the filter module, store the nutrient solution to be used, adjust the temperature of the nutrient solution, and separate waste water;

a grid plate for supporting the biological filler unit;

A biological filler unit, which utilizes the biological filler provided therein to biologically filter the exhaust gas;

The exhaust hole is used to discharge the waste gas filtered by the biological filler unit from the biological filter bed module.

As a preferred solution, one or more sets of biological filler units are connected in series or in parallel.

As a preferred version, the biological filler is an inorganic filler, an organic filler or a combination thereof, and microbial flora is also attached to the surface of the biological filler; wherein the inorganic filler is selected from Pall rings, ceramic balls, random stacks One or a combination of volcanic rock, activated carbon material, or honeycomb structured packing, and the organic filler is selected from one or a combination of humus bark, plant roots, branches, and sawdust.

Optionally, the biological filler unit includes modular drawers for storing inorganic fillers, organic fillers or combinations thereof.

Optionally, a liquid storage bottle for providing nutrient solution is also included, and the liquid storage bottle is located inside or outside the box.

As a preferred solution, it also includes a control unit and a pump unit, the control unit is used to adjust the air volume or wind pressure at the exhaust gas inlet and control the temperature and humidity of the biological filler in the biological filler unit, and according to the temperature and humidity of the biological filler, The pump unit is controlled to provide a nutrient solution to the biological filler unit via the circulating spray unit.

As a preferred solution, the container-type biological filter bed includes one or more sets of treatment equipment connected in series or in parallel, and each set of treatment equipment includes a set of boxes, a filter unit, a circulating spray unit and a solar heat collection unit.

As an optional solution, the filter module is arranged inside and/or outside the box.

The above technical solution of the utility model provides a container-type biological filter bed. Compared with the existing biological filter bed, the biological filter bed solves the problem that the current biological filter bed is difficult to move, and can be placed according to different needs location, and it can be applied to different environments and conditions, especially for emergency treatment of organic waste gas discharge; in addition, an insulation layer and a solar heat collection unit are respectively set inside and outside the box of the biological filter bed, which can not only effectively Providing energy can also solve the problem of low microbial purification efficiency caused by low temperature in winter.

Description of drawings

Fig. 1 is a schematic structural diagram of a container-type biological filter bed provided by an embodiment of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

The embodiment of one aspect of the utility model provides a container-type biological filter bed, including a box body and a filter unit. The box body is respectively provided with a waste gas inlet and a purified gas outlet. The filter unit includes a pre-filtered waste gas A filter module and a biological filter bed module for biologically filtering the exhaust gas filtered by the filter module, wherein a circulating spray unit is provided above the biological filter bed module; an insulation layer is provided on the inner wall of the box , and a solar heat collection unit is also provided on the outer top or side of the box.

In this embodiment, the biological filter bed is a container-type biological filter bed, which has a box with the same dimensions as a standard container, and the location can be selected according to different needs, which is not only conducive to solving the problem of movement, but also can efficiently treat organic waste gas. Therefore, it can be effectively used in the emergency treatment of organic waste gas discharge. The inside of the box is equipped with an insulation layer, and the outside is equipped with a solar heat collection unit, such as a solar water heater. Provide energy under normal conditions, not only save energy consumption, but also effectively avoid the problem of low purification efficiency caused by microorganisms due to low temperature. In addition, the box is equipped with an exhaust gas inlet and a purified gas outlet. After the exhaust gas enters the box from the exhaust gas inlet, it can be pre-filtered and biologically filtered through the filter module and the biological filter bed module, so that the purified gas that meets the requirements can be discharged. gas.

It can be understood that, in this embodiment, the positions of the exhaust gas inlet and the purified gas outlet on the box are not specifically limited, and the two can be located on the same side of the box, or on different sides of the box, or in other relative positions. Moreover, in a preferred embodiment, a rainproof cover can also be provided at the outlet of the purified gas to avoid problems such as rainwater pouring when the outlet of the purified gas is opened vertically upward relative to the box body.

In the above embodiments, the filter module is a one-stage or multi-stage filter, and the filter is selected from one or a combination of pipeline filters, plate filters, bag filters, filter elements, or packed filters. In order to enable the exhaust gas to be effectively biologically filtered, pre-filtration is required before the biological filter to remove large particles of impurities contained in the exhaust gas. In the pre-filtration process, primary filters are used. It can be understood that the style of the filter is not specifically limited in this embodiment, it can be the listed plate filter, bag filter, etc., and can also be other filters well known to those skilled in the art, such as filter core , as long as it can meet the filtering requirements. In another preferred embodiment, a filter module can also be set before the exhaust gas inlet, wherein the filter module can be a one-stage or multi-stage filter, and the filter can be a pipeline filter, a plate type, a bag type, a filter element or a packed filter one or a combination thereof.

In order to effectively filter and remove large particles of impurities, in the filter modules of the above embodiments, the selected packing filter can be selected from at least one of activated carbon block, molecular sieve, silica gel or honeycomb structured packing. It can be understood that this embodiment is not limited to the fillers listed above, and other fillers known to those skilled in the art may also be used, for example, bio-ceramic, coke, honeycomb blocks and the like.

In a preferred embodiment, the biofilter bed module includes sequentially from bottom to top:

Transition buffer unit, which includes a heating pipe, and the transition buffer unit is used to adjust the temperature and humidity of the exhaust gas filtered by the filter module, store the nutrient solution to be used, adjust the temperature of the nutrient solution and separate waste water; The grid plate is used to support the biological filler unit; the biological filler unit uses the biological filler provided therein to carry out biological filtration on the waste gas; the exhaust hole is used to filter the exhaust gas The exhaust gas filtered by the biological filler unit is discharged from the biological filter bed module.

In the above embodiments, the biological filter bed module includes multiple units from bottom to top, so that the gas pre-filtered by the filter module will first be adjusted and adapted in the transition buffer unit, and enter the biological filler after reaching the required temperature and humidity. The unit undergoes biological filtration treatment, and after the biological filtration treatment, it is discharged into the box through the exhaust hole, and is discharged from the box through the purified gas outlet.

In order to keep the biological treatment efficiency of the biological filter bed module at a high level, in a preferred embodiment, one or more sets of biological filler units are connected in series or in parallel. The biological filler units are connected in series or in parallel, which is beneficial for disassembly and integration according to the processing needs. For example, when a large amount of organic waste gas needs to be treated within a certain period of time, multiple biological filler units can be connected in series or in parallel. It can be understood that, in this embodiment, since the serial or parallel connection of the biological filler units is known to those skilled in the art, it will not be repeated in this embodiment.

When the organic waste gas is specifically filtered and treated by the biological filler unit, in an optional implementation, the biological filler is an inorganic filler, an organic filler or a combination thereof, and microbial flora is attached to the surface of the biological filler. In this embodiment, the microbial flora may be the dominant flora for efficient treatment of organic waste gas. Wherein, the flora may include, for example, fungi, bacteria, algae, protozoa, metazoans, organisms visible to the naked eye, and the like. Because different microbial flora can purify and treat different types of organic waste gas, those skilled in the art can make corresponding choices according to actual conditions when applying. As for which kind of microbial flora can efficiently treat which kind of organic waste gas is known to those skilled in the art, it is not specifically limited in this embodiment.

In the foregoing embodiments, the inorganic filler is selected from one or a combination of Pall rings, ceramic balls, random piled volcanic rocks, activated carbon materials or honeycomb structured fillers, and the organic filler is selected from humus bark, One or a combination of plant roots, branches, and sawdust. It can be understood that, in the biological filtration process, the biological filler used can be inorganic filler, organic filler, inorganic mixed filler or organic mixed filler. In this embodiment, it is not limited to those listed above, and other reasonable fillers known to those skilled in the art can also be used.

In order to facilitate the replacement of biological fillers, in a preferred embodiment, the biological filler unit can be configured as a modular drawer, so that inorganic fillers, organic fillers or a combination thereof can be stored in these modular drawers.

In the container-type biological filter bed listed in the above embodiments, a liquid storage bottle for providing nutrient solution is also included, and the liquid storage bottle is located inside or outside the box. In this embodiment, the location of the liquid storage bottle is not specifically limited, as long as the nutrient solution can be provided in time. In a preferred embodiment, the liquid storage bottle can be located in the box, so that the entire container-type biofilter bed can be moved efficiently in an emergency situation, thereby enabling quick response to an emergency situation.

In the above embodiment, a control unit and a pump unit may also be included in the box, wherein the control unit is used to control the temperature and humidity of the biological filler in the biological filler unit, and control the pump according to the temperature and humidity of the biological filler. The unit provides nutrient solution to the biofill unit via a circulating spray unit. Among them, the circulation spray unit is a circulation device, driven by the pump, it draws the nutrient solution from the liquid storage bottle, and sprays it to the biological packing unit through the spray unit in the device, and the water flowing out through the filling pores in the biological packing unit The nutrient solution is then supplied to the liquid storage bottle through the circulation pipeline below it. During this process, the control unit will reasonably regulate the temperature and humidity of the biological filler, and when it is at a reasonable temperature and humidity, the control unit will stop providing the nutrient solution.

In a preferred embodiment, in order to be able to treat organic waste gas in different environments and scenarios reasonably and efficiently, the container-type biological filter bed includes one or more sets of treatment equipment connected in series or in parallel, and each set treats The equipment includes a set of boxes, filter units, circulating spray units and solar heat collection units, which can meet the needs of large-scale organic waste gas treatment.

In an optional embodiment, the filter module is arranged inside and/or outside the box. Specifically, the filter module can be set at different locations, such as inside or outside the box, or both inside and outside the box, so that it can be used in conjunction with other units/modules according to different application scenarios or conditions . In a preferred embodiment, the filter module is arranged outside the box, so that the gas can directly enter the biological filter bed module after entering the box for effective filtration and purification.

In order to introduce the container-type biological filter bed provided by the embodiment of the present utility model more clearly and in detail, it will be described in conjunction with specific embodiments below.

Example 1

When using the container-type biological filter bed, as shown in Figure 1, the organic waste gas to be treated can be passed through the waste gas inlet 1, and after passing through, it is firstly pre-filtered through the filter module 5, and the large amount of organic waste gas contained in the organic waste gas is to be removed. The particulate impurities are passed into the biological filter bed module. The biological filter bed module mainly includes a transition buffer unit 6 and various levels of biological filler units 4 from bottom to top. The transition buffer unit 6 stores nutrient solution, and the gas filtered by the filter module 5 is waiting to enter After the biological filter bed module 4, the temperature and humidity of the filtered exhaust gas will be adjusted first through the transitional buffer unit 6, then biological filtration will be performed through various levels of biological fillers, and finally the purified gas filtered through the biological fillers will be discharged through the purified gas outlet 2 Outside the box. In this process, the pressure, humidity and temperature in the biological filtration module 4 are adjusted by the control unit, and when it is detected that the microbial flora attached to the surface of the biological filler needs the nutrient solution, the control unit controls the pump unit to circulate the nutrient solution through the The spray unit 3 is provided to the biological filler. If there is no need to provide nutrient solution, the control unit controls the pump unit to stop supplying; Provide the required heat.

Example 2

The implementation is basically the same as in Example 2, except that the organic waste gas to be treated is pre-filtered through the filter module outside the box, and then passed into the box through the waste gas inlet 1 and filtered by the biological filter bed module.

The above is only to illustrate the implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, any modification, equivalent replacement, Improvements and the like should all be included within the protection scope of the present utility model.

Claims (9)

1. a kind of container-type bacteria bed, it is characterised in that including casing and filter element, offered respectively on the casing Exhaust gas entrance and clean gas outlet, the filter element include carrying out waste gas pre-filtered filtering module and to by filtering module Waste gas after filtering carries out the bacteria bed module of biofiltration, wherein, it is provided with circulation above the bacteria bed module Spray unit；The inwall of the casing is provided with heat-insulation layer, and is additionally provided with the sun in the exterior top surface of the casing or side Can heat collection unit.

2. container-type bacteria bed according to claim 1, it is characterised in that the filtering module is one or more levels Filter, the filter is selected from the one kind in piping filter, board-like, pocket type, filter core or wadding filter.

3. container-type bacteria bed according to claim 1, it is characterised in that the bacteria bed module is from the bottom to top Include successively：

Transition buffer unit, the transition buffer unit includes heating tube, and the transition buffer unit is used to adjust through filtering The humiture of the waste gas after modular filtration, storage nutrient solution to be used, the temperature of regulation nutrient solution and separation waste water；

Waffle slab, the waffle slab is used to support biologic packing material unit；

Biologic packing material unit, the biologic packing material unit carries out biofiltration using the biologic packing material provided in it to waste gas；

Steam vent, the waste gas that the steam vent is used for after the biologic packing material unit is filtered is arranged from the bacteria bed module Go out.

4. container-type bacteria bed according to claim 3, it is characterised in that the biologic packing material unit with a set of or The mode of many set serial or parallel connections is connected.

5. the container-type bacteria bed according to claim 3 or 4, it is characterised in that the biologic packing material unit includes Modularization drawer.

6. container-type bacteria bed according to claim 1, it is characterised in that also including being provided with the liquid storage of nutrient solution Bottle, the liquid storage bottle is located in the casing or outside casing.

7. container-type bacteria bed according to claim 3, it is characterised in that also including pump unit and for adjusting The control unit of the humiture of biologic packing material in air quantity or blast and the control biologic packing material unit at exhaust gas entrance.

8. container-type bacteria bed according to claim 1, it is characterised in that the container-type bacteria bed bag The processing equipment together with one or more groups of serial or parallel connections is included, every group of processing equipment includes that a set of casing and filtering are single Unit, circulated sprinkling unit and solar energy heating unit.

9. container-type bacteria bed according to claim 1, it is characterised in that the filtering module is arranged in casing And/or outside casing.