CN221244351U - Bag dust removal device for waste gas treatment - Google Patents

Abstract

The utility model belongs to the technical field of waste gas treatment, and particularly relates to a bag dust removal device for waste gas treatment, comprising an outer box, a bag assembly, an air intake assembly, a fan assembly and a spray head; the outer bag assembly is used to filter dust in the waste gas; the air intake assembly comprises an air intake pipe and an air jet pipe; the air intake pipe is arranged on one side outer wall of the outer box, the air jet pipe is connected with the air intake pipe, and the air jet pipe is arranged on the upper part of the bag assembly; the fan assembly is installed on the other side wall of the outer box; the fan assembly is used to extract air in the cavity, the spray head is arranged at the top of the cavity, the spray head is connected with an external water supply device, and the spray head sprays clean water into the cavity, thereby cleaning the dust attached to the cavity. Therefore, the dust attached to the components of the outer box can be washed away in time during the dust removal process, thereby avoiding the occurrence of component function failure due to excessive accumulation of dust.

Description

Bag dust removal device for waste gas treatment

Technical Field

The utility model belongs to the technical field of waste gas treatment, in particular to a bag dust removal device for waste gas treatment.

Background technique

The dust collector is the heart of the bag filter, generally called the dust collector or dust filter bag. The dust collector is the key part of the bag filter operation process. Usually the cylindrical filter bag is vertically hung in the dust collector. The fabric and design of the dust collector should strive for high-efficiency filtration, easy dust removal and durability. The selection of the dust collector is very important, which directly affects the dust removal effect of the dust collector. The selection of the dust collector is based on the following factors: gas temperature, humidity and chemical properties, particle size, dust concentration, filtration wind speed, dust removal method and other factors.

The utility model of Chinese patent number ZL201821714009.9 discloses a bag dust collector, including an outer shell, a filter bag, a filter element, a dust cleaning unit and a screw conveyor. A support frame is fixed inside the upper end of the outer shell, one end of the filter element is evenly fixed on the support frame, the filter bag is sleeved on the outside of the filter element and fixed to the annular hook on the filter element, the filter element also includes a top ring, an air guide cover, a wind shield, a spring, a bottom ring and an elastic rod, the flared opening of the air guide cover is respectively fixed to the bottom of the top ring and the top of the bottom ring, the wind shield is fixed to the elastic rod by a spring, and the elastic rod is fixed between the top ring and the bottom ring, the number of the dust cleaning units is two groups and they are respectively located at the upper and lower sides of the filter element, the bottom end of the outer shell is provided with an ash hopper, the screw conveyor is installed in the ash hopper, the outer shell is also provided with an air inlet pipe and an air outlet pipe, the filter bag can be cleaned in sections, the dust cleaning effect of the lower section of the filter bag is enhanced, and the damage to the primary layer is small. However, the bag filter, like most existing bag filters, lacks the corresponding internal cleaning function. After a long period of dust removal, a large amount of dust will adhere to the inside. If it is not cleaned in time, it will seriously affect the normal dust removal function of the dust collector.

Utility Model Content

The utility model aims to provide a bag dust removal device for waste gas treatment, aiming to solve the technical problem that the bag dust collector in the prior art does not have an internal cleaning function.

To achieve the above-mentioned purpose, the embodiment of the utility model provides a bag dust removal device for waste gas treatment, including an outer box, a bag assembly, an air intake assembly, a fan assembly and a spray head; wherein:

The interior of the outer box is a cavity;

The bag assembly is arranged in the cavity, and the bag assembly is used to filter dust in the exhaust gas;

The air intake assembly includes an air intake pipe and an air injection pipe; the air intake pipe is arranged on an outer wall of one side of the outer box body, the air injection pipe is connected to the air intake pipe, and the air injection pipe is arranged on the upper part of the bag assembly;

The fan assembly is installed on the other side wall of the outer box; the fan assembly is connected to the cavity, and the fan assembly is used to extract air in the cavity to keep the cavity in a negative pressure state;

The spray head is arranged at the top of the cavity, and the spray head is connected with an external water supply device. The spray head sprays clean water into the cavity, so as to clean the dust attached to the cavity.

Optionally, the cloth bag assembly comprises a mounting block and a cloth bag body; the mounting block is fixedly mounted in the cavity, and the mounting block is provided with a plurality of mounting cages; the cloth bag body is mounted in the mounting cages.

Optionally, the mounting cage is provided with cage frames; the cage frames are connected to the cloth bag body by glue, so that the cloth bag body is tensioned.

Optionally, the air intake pipe includes a main air intake pipe and a branch air intake pipe; the main air intake pipe is fixedly arranged on an outer wall of one side of the outer box body; one end of the branch air intake pipe is connected to the main air intake pipe; the jet pipe is connected to the other end of the branch air intake pipe, and the jet pipe is provided with a plurality of air outlets; the air outlet is arranged directly above the cloth bag body.

Optionally, the branch air intake pipe is provided with a first switch valve.

Optionally, the main air intake pipe is provided with a second switching valve.

Optionally, a plurality of drainage grooves and downpipes are provided on the mounting block; the drainage grooves are inclined from both sides of the mounting block toward the center of the mounting block; the downpipe is arranged in the center of the mounting block, the downpipe is arranged vertically, the upper end of the downpipe is connected to the drainage grooves, and the lower end of the downpipe is connected to an external drainage pipeline; the cooling water falls from the downpipe and is discharged from the external drainage pipeline.

Optionally, the fan assembly includes an air collecting hood, a connecting pipe, an exhaust duct and a fan body; the air collecting hood is arranged on the other outer side wall of the outer box body, and the air collecting hood is connected to the outer box body; one end of the connecting pipe is connected to the air collecting hood; the exhaust duct is connected to the other end of the connecting pipe; the fan body is installed on the exhaust duct; under the drive of the fan body, the air in the cavity is drawn out and discharged to the outside from the exhaust duct, thereby drawing negative pressure to the cavity.

Optionally, the outer box body includes a bracket, a side panel and a top cover; the side panel is connected to the bracket by welding; the air intake assembly and the fan assembly are both fixedly mounted on the side panel.

Optionally, a base is provided at the bottom of the outer box.

The above one or more technical solutions in the bag dust removal device for exhaust gas treatment provided by the embodiment of the utility model have at least one of the following technical effects: under the action of the fan assembly, the internal pressure of the outer box body is rapidly reduced. At this time, the exhaust gas to be treated is introduced into the outer box body, and the exhaust gas to be treated enters the injection pipe from the air inlet pipe, and then enters the interior of the outer box body through the injection pipe. Due to the action of the fan assembly, the exhaust gas to be treated will pass through the bag assembly. In this process, large particles of dust in the exhaust gas are isolated by the bag assembly and separated from the air, thereby achieving the purpose of removing dust from the exhaust gas.

After the dust removal is completed, close each pipeline and the fan assembly, open the spray head, and the clean water sprayed from the spray head flushes the internal components of the outer box body. Therefore, during the dust removal process, the dust adhering to the components of the outer box body can be flushed away in time, thereby avoiding the failure of component functions due to excessive accumulation of dust.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

FIG1 is a schematic diagram of the overall structure of a bag dust removal device for waste gas treatment provided by an embodiment of the utility model;

FIG2 is a cross-sectional view of a bag dust removal device for waste gas treatment provided by an embodiment of the utility model;

FIG3 is a schematic diagram of the structure of the bag dust removal device for waste gas treatment provided by an embodiment of the utility model after the top cover is hidden.

Among them, the reference numerals in the figure are:

100, outer box body; 110, bracket; 120, side panel; 130, top cover; 200, cloth bag assembly; 210, mounting block; 211, drain trough; 212, downpipe; 220, cloth bag body; 230, mounting cage; 231, cage frame; 300, air intake assembly; 310, air intake pipe; 311, main air intake pipe; 312, jet pipe; 320, branch air intake pipe; 400, fan assembly; 410, wind hood; 420, connecting pipe; 430, exhaust pipe; 440, fan body; 500, sprinkler head.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

In some embodiments of the present invention, as shown in FIGS. 1 to 3 , a bag dust removal device for air treatment is provided, comprising an outer box 100 , a bag assembly 200 , an air intake assembly 300 , a fan assembly 400 and a sprinkler head 500 .

The interior of the outer box 100 is a cavity.

The bag assembly 200 is disposed in the cavity, and the bag assembly 200 is used to filter dust in the exhaust gas.

The air intake assembly 300 includes an air intake pipe 310 and an air injection pipe 312. The air intake pipe 310 is disposed on an outer wall of one side of the outer box 100, and the air injection pipe 312 is communicated with the air intake pipe 310, and the air injection pipe 312 is disposed on the upper part of the bag assembly 200.

The fan assembly 400 is installed on the other side wall of the outer box 100. The fan assembly 400 is in communication with the cavity, and is used to extract air in the cavity to keep the cavity in a negative pressure state.

The spray head 500 is disposed at the top of the cavity. The spray head 500 is connected to an external water supply device. The spray head 500 sprays clean water into the cavity, thereby cleaning dust attached to the cavity.

Under the action of the fan assembly 400, the internal pressure of the outer box body 100 is rapidly reduced. At this time, the waste gas to be treated is introduced into the outer box body 100, and the waste gas to be treated enters the injection pipe 312 from the air inlet pipe 310, and then enters the interior of the outer box body 100 through the injection pipe 312. Due to the action of the fan assembly 400, the waste gas to be treated will pass through the bag assembly 200. In this process, large particles of dust in the waste gas are isolated by the bag assembly 200 and separated from the air, thereby achieving the purpose of removing dust from the waste gas.

After the dust removal is completed, the various pipelines and the fan assembly 400 are closed, and the spray head 500 is turned on. The clean water sprayed from the spray head 500 flushes the internal components of the outer box body 100. Therefore, during the dust removal process, the dust adhering to the various components of the outer box body 100 can be washed away in time, thereby avoiding the failure of component functions due to excessive accumulation of dust.

In some other embodiments of the utility model, as shown in FIG. 2-3, the bag assembly 200 includes a mounting block 210 and a bag body 220. The mounting block 210 is fixedly mounted in the cavity, and the mounting block 210 is provided with a plurality of mounting cages 230. The bag body 220 is mounted in the mounting cage 230. Specifically, the mounting cage 230 and the bag body 220 are both cylindrical. The bag body 220 is made of waterproof and oil-proof material. This material is based on ordinary cloth raw materials, and is formed by impregnation, pre-baking and baking of hydrophobic agents and oleophobic agents. After rapid drying, the hydrophobic agent and oleophobic agent are attached to the surface of the filter material fiber in a mesh shape, thereby reducing the surface tension between water and oil and the filter bag, so that the wet filter medium formed by water, oil and dust will not adhere to the surface of the dust filter bag, thereby avoiding the bag sticking phenomenon. It is suitable for dust collection with high humidity and oil-containing gas.

In other embodiments of the present invention, as shown in FIG3 , the mounting cage 230 is provided with a cage frame 231. The cage frame 231 is connected to the bag body 220 by glue, so that the bag body 220 is tightened. Therefore, the bag body 220 can be fully unfolded, so as to facilitate the inflow and outflow of exhaust gas.

In other embodiments of the utility model, as shown in FIGS. 1 to 3 , the air intake pipe 310 includes a main air intake pipe 311 and a branch air intake pipe 320. The main air intake pipe 311 is fixedly arranged on an outer wall of one side of the outer box body 100. One end of the branch air intake pipe 320 is connected to the main air intake pipe 311. The jet pipe 312 is connected to the other end of the branch air intake pipe 320, and the jet pipe 312 is provided with a plurality of air outlets. The air outlet is arranged directly above the bag body 220. Specifically, in the present embodiment, the branch air intake pipe 320 and the jet pipe 312 are both provided with a plurality of them, and the branch air intake pipes 320 and the jet pipes 312 are independent of each other. The branch air intake pipe 320 is provided with a first switch valve. Therefore, in the actual dust filtering process, the number of the branch air intake pipes 320 to be connected can be selected according to the amount of exhaust gas.

In other embodiments of the utility model, as shown in FIG3 , a plurality of drainage grooves 211 and downpipes 212 are provided on the mounting block 210. The drainage grooves 211 are inclined from both sides of the mounting block 210 toward the center of the mounting block 210. The downpipe 212 is provided at the center of the mounting block 210, and the downpipe 212 is vertically provided. The upper end of the downpipe 212 is connected to the drainage groove 211, and the lower end of the downpipe 212 is connected to an external drainage pipeline. The clean water sprayed by the sprinkler head 500 falls into the drainage groove 211. Since the drainage groove 211 is inclined, the clean water will flow to the lower end of the drainage groove 211, that is, the pipe mouth of the downpipe 212. The clean water falls from the downpipe 212 and is discharged from the external drainage pipeline.

In other embodiments of the utility model, as shown in FIGS. 1 to 3 , the fan assembly 400 includes an air collecting hood 410, a connecting pipe 420, an exhaust pipe 430 and a fan body 440. The air collecting hood 410 is disposed on the other outer side wall of the outer box body 100, and the air collecting hood 410 is communicated with the outer box body 100. One end of the connecting pipe 420 is communicated with the air collecting hood 410. The exhaust pipe 430 is communicated with the other end of the connecting pipe 420. The fan body 440 is mounted on the exhaust pipe 430. Driven by the fan body 440, the air in the cavity is drawn out and discharged from the exhaust pipe 430 to the outside, thereby drawing negative pressure to the cavity.

In other embodiments of the present invention, as shown in FIG1 , the outer box 100 includes a bracket 110, a side plate 120 and a top cover 130. The side plate 120 is connected to the bracket 110 by welding. The air intake assembly 300 and the fan assembly 400 are both fixedly mounted on the side plate 120.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The cloth bag dust removing device for waste gas treatment is characterized by comprising an outer box body, a cloth bag assembly, an air inlet assembly, a fan assembly and a spray header; wherein:

the inside of the outer box body is a cavity;

the cloth bag component is arranged in the cavity and is used for filtering dust in the waste gas;

The air inlet assembly comprises an air inlet pipe and an air jet pipe; the air inlet pipe is arranged on the outer wall of one side of the outer box body, the air ejector pipe is communicated with the air inlet pipe, and the air ejector pipe is arranged on the upper part of the cloth bag assembly;

The fan assembly is arranged on the other side wall of the outer box body; the fan assembly is communicated with the cavity and is used for extracting air in the cavity so as to keep the cavity in a negative pressure state;

The spray header is arranged at the top of the cavity, the spray header is communicated with an external water supply device, and the spray header sprays clear water to the cavity, so that dust attached in the cavity is cleaned.

2. The exhaust gas treatment bag-type dust collector according to claim 1, wherein the bag assembly comprises a mounting block and a bag body; the mounting block is fixedly arranged in the cavity and is provided with a plurality of mounting cages; the cloth bag body is arranged in the installation cage.

3. The bag-type dust collector for exhaust gas treatment according to claim 2, wherein the installation cage is provided with cage ribs; the cage bone is connected with the cloth bag body through glue, so that the cloth bag body is tensioned.

4. The bag-type dust removing apparatus for exhaust gas treatment according to claim 2, wherein the air intake pipe comprises a main air intake pipe and a branch air intake pipe; the main air inlet pipe is fixedly arranged on the outer wall of one side of the outer box body; one end of the branch air inlet pipe is communicated with the main air inlet pipe; the air jet pipe is communicated with the other end of the gas dividing inlet pipe, and is provided with a plurality of air outlets; the air outlet is arranged right above the cloth bag body.

5. The bag-type dust collector for exhaust gas treatment according to claim 4, wherein the split intake pipe is provided with a first switching valve.

6. The bag-type dust collector for exhaust gas treatment according to claim 5, wherein the main intake pipe is provided with a second switch valve.

7. The bag-type dust collector for exhaust gas treatment according to claim 4, wherein the installation block is provided with a plurality of drain grooves and downpipes; the drainage grooves incline from two sides of the mounting block to the center of the mounting block; the downpipe is arranged in the center of the mounting block, the downpipe is vertically arranged, the upper end of the downpipe is communicated with the drainage groove, and the lower end of the downpipe is communicated with an external drainage pipeline; the cooling water falls down from the downpipe and is discharged from an external drainage pipeline.

8. The bag-type dust collector for exhaust gas treatment according to any one of claims 1 to 6, wherein said fan assembly comprises a collection hood, a connection pipe, an exhaust pipe, and a fan body; the air collecting cover is arranged on the other outer side wall of the outer box body and is communicated with the outer box body; one end of the connecting pipe is communicated with the wind collecting cover; the exhaust pipe is communicated with the other end of the connecting pipe; the fan body is arranged on the exhaust pipe; under the drive of the fan body, the air in the cavity is pumped out and discharged to the outside from the exhaust pipe, so that negative pressure is pumped out of the cavity.

9. The bag-type dust collector for exhaust gas treatment of claim 8 wherein said outer housing includes a bracket, side panels and a top cover; the side plates are connected with the bracket through welding; the air inlet assembly and the fan assembly are fixedly arranged on the side plates.

10. The bag-type dust collector for exhaust gas treatment according to claim 9, wherein a base is provided at the bottom of the outer case.