CN211864277U - Dust removal exhaust system for industrial factory building - Google Patents

Abstract

The utility model discloses a dust removal and ventilation system for industrial workshops, which relates to the technical field of environmental protection. The diameter of the outlet is gradually reduced along the flow direction of the gas; the air inlet end of the induced draft fan is connected to the air outlet through the first air exhaust pipe, and the air outlet end of the induced draft fan is connected to the filter device through the second air exhaust pipe; the filter The device is provided with a filter assembly, and the air outlet end of the filter device is connected to the bag filter. The utility model can effectively extract the waste gas in the workshop, and then use the subsequent dust removal and purification functions to process the gas, which not only has a good purification and dust removal effect on the waste gas, but also improves the work of the entire system under the condition of saving electricity. At the same time, the purification effect of exhaust gas is good, and the efficiency of the whole working system is high.

Description

A dust extraction and ventilation system for industrial workshops

technical field

The utility model relates to the technical field of environmental protection, in particular to a dust removal and ventilation system for industrial workshops.

Background technique

The industrial production process is carried out in industrial plants. There are many types of industrial products, some of which need to be mixed with toxic and volatile raw materials, and some of which produce volatile products. Affect the operation and physical health of the staff.

In order to solve this problem, dust removal and ventilation equipment is usually used to extract the gas in the industrial workshop. However, the existing dust removal and ventilation equipment cannot perform a good purification function after extracting the exhaust gas, so that the exhaust gas is still harmful to the environment. cause pollution; in addition, the existing ventilation system cannot effectively discharge the gas in the workshop, and a large amount of ventilation volume and power energy is wasted.

SUMMARY OF THE INVENTION

The purpose of this utility model is to: provide a dust removal and ventilation system for industrial workshops, which can effectively extract the waste gas in the workshop, and then use the subsequent dust removal and purification effects to process the gas, which not only has a good purification and dust removal effect on the waste gas In addition, the working efficiency of the whole system is improved under the condition of saving electricity, and the purification effect of exhaust gas is good, and the efficiency of the whole working system is high.

The technical scheme adopted by the utility model is as follows:

A dedusting and exhausting system for an industrial workshop, comprising an industrial workshop, an exhaust port, an induced draft fan, a filter device and a bag filter; the exhaust port is fixedly connected with the air outlet of the industrial workshop, and the diameter of the exhaust port gradually increases along the flow direction of the gas. The air inlet end of the induced draft fan is connected to the air outlet through the first air exhaust pipe, and the air outlet end of the induced draft fan is connected to the filter device through the second air exhaust pipe; the filter device is provided with a filter assembly, and the filter The air outlet end of the device is connected to the bag filter.

The working principle of the utility model is:

When the dust removal and air extraction system of the present invention is activated, the waste gas in the industrial workshop is drawn out along the air extraction opening. When the airflow passes through the air extraction opening, since the diameter of the air extraction opening is gradually reduced along the flow direction of the wind, under the same wind state, the wind speed Faster, the air flow is accelerated, and it plays a role in the drainage of the air flow, so that the exhaust gas in the workshop can be effectively discharged, and it can save electricity, and at the same time improve the working efficiency of the whole system, so that the subsequent dust removal and purification effect is more effective. Then the air flow enters the filter device for preliminary filtration to remove impurities and odors of large particles, and finally the purified gas is discharged after being dedusted by a cloth bag.

Preferably, an air collecting plate is arranged in the industrial workshop at the air outlet of the industrial building, the air collecting plate is arc-shaped, and the arc surface is far away from the air outlet, and a plurality of ventilation holes are opened on the air collecting plate. By arranging the arc-shaped air collecting plate, the gas enters the cavity formed by the air collecting plate and the air outlet through a number of ventilation holes opened on the air collecting plate. The cavity formed by the air plate and the air outlet is also gradually reduced along the flow direction of the gas, so that the gas can be first collected in the cavity formed by the air collecting plate and the air outlet, and then discharged along the air outlet, and further up the air. To speed up the wind speed, so as to improve the work efficiency of the entire system and the effect of dust removal and purification.

Preferably, the induced draft fan is arranged inside the protective box, and the inner wall of the protective box is provided with a layer of sound-absorbing cotton. By setting the protective box, the induced draft fan can be prevented from being eroded by rain, wind and frost, and its service life can be improved. At the same time, the setting of the sound-absorbing cotton can absorb noise and reduce the noise caused by the induced draft fan when it is working.

Preferably, the filter device includes a housing, an air inlet cavity is arranged in the upper part of the housing, a filter assembly is arranged in the middle part of the housing, and an air outlet cavity is arranged in the lower part of the housing. By setting the air inlet cavity and the air outlet cavity, the air flow is buffered to ensure that the air flow can be fully filtered in the filter assembly, so as to ensure the dust removal and purification effect of the gas.

Preferably, the filter assembly includes a primary filter screen, a filter element and a secondary filter screen arranged in sequence along the wind flow direction. The large particles are initially intercepted by the primary filter, and then the gas is deodorized by the adsorption of the filter element. Finally, the particles in the gas are intercepted again by the secondary filter to ensure the gas purification effect. In order to achieve a good effect , the pore size of the primary filter should be larger than the pore size of the secondary filter.

Preferably, the primary filter is in the shape of a "U"-shaped frame, and the primary filter is detachably connected to the inside of the housing, and a sealing door is opened on the housing above the primary filter. By setting the primary filter into a "U"-shaped frame, the intercepted large particulate matter can be collected. After a certain period of time, the primary filter can be disassembled for cleaning, so that it can restore good filtration. Effect.

Preferably, a mounting block for fixing the primary filter screen is provided inside the housing, and the upper end edge of the primary filter screen is inserted into the clamping hole on the mounting block through a buckle for fixing. The installation and disassembly of the primary filter are more convenient through the setting of the buckle structure.

To sum up, due to the adoption of the above-mentioned technical solutions, the beneficial effects of the present utility model are:

1. The utility model effectively extracts the waste gas in the workshop by setting the air outlet, the induced draft fan, the filter device and the bag filter, and then uses the subsequent dust removal and purification to process the gas, which not only plays a good role in purifying the waste gas. The dust removal effect improves the working efficiency of the entire system while saving electricity. At the same time, the purification effect of the exhaust gas is good, and the efficiency of the entire working system is high.

2. The diameter of the air outlet set in the present utility model is gradually reduced along the flow direction of the wind. In this way, under the same wind power state, the wind speed is faster, which makes the air flow faster, and plays a role in the drainage of the air flow, so that the inside of the factory building can be drained. The exhaust gas can be effectively discharged, and can save electricity, and at the same time improve the working efficiency of the whole system, so that the subsequent dust removal and purification effect is better.

3. The utility model is provided with an air collecting plate at the air outlet of the industrial building in the industrial workshop, and by setting an arc-shaped air collecting plate, the gas is provided with a number of ventilation holes through the air collecting plate to enter the air collecting plate and the air collecting plate. In the cavity formed by the air outlet, since the diameter of the air outlet is gradually reduced along the flow direction of the gas, the cavity formed by the air collecting plate and the air outlet is also gradually reduced along the flow direction of the gas, so that the gas can be collected first. In the cavity formed by the air collecting plate and the air outlet, it is then discharged along the air outlet, which further accelerates the wind speed, thereby improving the working efficiency and dust removal and purification effect of the entire system.

4. The utility model can prevent the induced draft fan from being eroded by rain and wind and frost by providing a protective box, and improve its service life. At the same time, the sound-absorbing cotton can absorb noise and reduce the noise caused by the induced draft fan when it works.

5. In the present invention, the air inlet cavity and the air outlet cavity are arranged in the filter device to buffer the air flow to ensure that the air flow can be fully filtered in the filter assembly, thereby ensuring the dust removal and purification effect of the gas.

6. There are three kinds of filter components in the filter device of the present invention. The large particulate matter is initially intercepted by the primary filter screen, and then the gas is deodorized by the adsorption of the filter element, and finally the gas in the gas is deodorized by the secondary filter screen. The particles are intercepted again, and the adsorption and filtering effect of the triple filter element is used to ensure the gas purification effect. In order to achieve a good effect, the pore size of the primary filter should be larger than that of the secondary filter.

7. The present utility model can collect the intercepted large particles by setting the primary filter into a "U"-shaped frame. After a certain period of time, the primary filter It can restore a good filtering effect.

Description of drawings

The present invention will be described by way of example and with reference to the accompanying drawings, wherein:

Fig. 1 is the structural representation of the present utility model;

FIG. 2 is a schematic structural diagram of a filter device.

Marked as: 1-industrial plant, 2-air outlet, 3-air collecting board, 31-ventilation hole, 4-first exhaust duct, 5-draught fan, 6-protection box, 61-sound-absorbing cotton, 7-Second exhaust pipe, 8-Filter device, 81-Inlet cavity, 82-Outlet cavity, 83-Snap, 84-Filter assembly, 841-Primary filter, 842-Filter element, 843-Secondary filter Net, 85-seal door, 86-installation block, 87-housing, 9-third exhaust duct, 10-bag filter.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Example 1

A dedusting and exhausting system for an industrial plant, comprising an industrial plant 1, an exhaust port 2, an induced draft fan 5, a filter device 8 and a bag filter 10; the exhaust port 2 is fixedly connected to the air outlet of the industrial plant 1, and the The caliber is gradually reduced along the flow direction of the gas; the air inlet end of the induced draft fan 5 is connected to the air outlet 2 through the first air exhaust pipe 4, and the air outlet end of the induced draft fan 5 is connected to the filter device 8 through the second air exhaust pipe 7 ; The filter device 8 is provided with a filter assembly 84, and the air outlet end of the filter device 8 is connected to the bag filter 10.

The working principle of the utility model is:

When the dust removal and air extraction system of the present invention is activated, the waste gas in the industrial workshop 1 is drawn out along the air extraction opening 2. When the air flow passes through the air extraction opening 2, the diameter of the air extraction opening 2 is gradually reduced along the flow direction of the wind. In the state, the wind speed is faster, which makes the air flow faster, which plays a role in the drainage of the air flow, so that the exhaust gas in the workshop can be effectively discharged, and it can save electricity, and at the same time improve the working efficiency of the whole system, so that the follow-up The dust removal and purification effect is better, and then the air flow enters the filter device 8 for preliminary filtering to remove impurities and odors of large particles, and finally the purified gas is discharged after dust removal by bag dust removal.

Example 2

On the basis of Example 1, the industrial plant 1 is provided with an air collecting plate 3 at the air outlet of the industrial plant 1. Several ventilation holes 31 are opened on the air collecting plate 3 . By arranging the arc-shaped air collecting plate 3, the gas enters the cavity formed by the air collecting plate 3 and the air outlet 2 through a number of ventilation holes 31 on the air collecting plate 3. The flow direction is gradually reduced, and the cavity formed by the air collecting plate 3 and the air outlet 2 is also gradually reduced along the flow direction of the gas, so that the gas can be collected in the cavity formed by the air collecting plate 3 and the air outlet 2 first. Then it is discharged along the exhaust port 2, which further accelerates the wind speed, thereby improving the working efficiency and dust removal and purification effect of the entire system.

Example 3

On the basis of Embodiment 1, the induced draft fan 5 is arranged inside the protection box 6 , and a layer of sound-absorbing cotton 61 is arranged on the inner wall of the protection box 6 . The protection box 6 can prevent the induced draft fan 5 from being eroded by rain, wind and frost, and improve its service life. At the same time, the sound-absorbing cotton 61 can play a role in absorbing noise and reduce the noise caused by the induced draft fan 5 when it is working.

Example 4

On the basis of any one of Embodiments 1 to 3, the filter device 8 includes a housing 87 , an air inlet cavity 81 is arranged in the upper part of the housing 87 , a filter assembly 84 is arranged in the middle part of the housing 87 , and the lower part of the housing 87 is arranged An air outlet cavity 82 is provided. By providing the air inlet cavity 81 and the air outlet cavity 82, the air flow can be buffered to ensure that the air flow can be fully filtered in the filter assembly 84, thereby ensuring the dust removal and purification effect of the air.

Example 5

On the basis of any one of Embodiments 1 to 3, the filter assembly 84 includes a primary filter screen 841, a filter element 842 and a secondary filter screen 843 arranged in sequence along the wind flow direction. The large particles are initially intercepted by the primary filter 841, then the gas is deodorized by the adsorption of the filter element 842, and finally the particles in the gas are intercepted by the secondary filter 843 to ensure the gas purification effect. The pore size of the primary filter screen 841 should be larger than that of the secondary filter screen 843.

Example 6

On the basis of Example 5, the primary filter 841 is in the shape of a "U"-shaped frame, and the primary filter 841 is detachably connected to the inside of the housing 87 , and the housing above the primary filter 841 A sealing door 85 is opened on 87 . By setting the primary filter screen 841 in the shape of a "U"-shaped frame, the intercepted large particulate matter can be collected. After a certain period of time, the primary filter screen 841 can be disassembled for cleaning, so that it can recover well filter effect.

Example 7

On the basis of Embodiment 6, a mounting block 86 for fixing the primary filter screen 841 is provided inside the housing 87 , and the upper edge of the primary filter screen 841 is snapped into the clip on the mounting block 86 through the buckle 83 . fixed in the hole. The installation and removal of the primary filter screen 841 is more convenient through the arrangement of the buckle 83 structure.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that it can still be Modifications are made to the technical solutions recorded in the foregoing embodiments, or some or all of the technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention. It should be covered within the scope of the claims and description of the present invention.

Claims (7)

1. A dedusting and exhausting system for industrial workshops, characterized in that, comprising an industrial workshop (1), an air exhaust port (2), an induced draft fan (5), a filter device (8) and a bag filter (10); The outlet (2) is fixedly connected with the air outlet of the industrial plant (1), and the diameter of the air extraction outlet (2) is gradually reduced along the flow direction of the gas; the air inlet end of the induced draft fan (5) passes through the first air exhaust pipe (4). ) is connected to the air outlet (2), and the air outlet end of the induced draft fan (5) is connected to the filter device (8) through the second exhaust pipe (7); the filter device (8) is provided with a filter assembly (84) , the air outlet end of the filter device (8) is connected to the bag filter (10). 2. A dust removal and ventilation system for an industrial plant according to claim 1, characterized in that, an air collecting plate (3) is arranged at the air outlet of the industrial plant (1) in the industrial plant (1), so that the The air collecting plate (3) is arc-shaped, and the arc surface is far away from the air outlet (2), and a plurality of ventilation holes (31) are opened on the air collecting plate (3). 3. A dust extraction and ventilation system for an industrial plant according to claim 1, wherein the induced draft fan (5) is arranged inside the protection box (6), and the inner wall of the protection box (6) is provided with There is a layer of sound-absorbing cotton (61). 4. A dust removal and ventilation system for an industrial plant according to any one of claims 1 to 3, wherein the filter device (8) comprises a casing (87), and an inner and upper part of the casing (87) is provided with an inlet In the air cavity (81), a filter assembly (84) is arranged in the middle part of the housing (87), and an air outlet (82) is arranged in the lower part of the housing (87). 5. The dust extraction and ventilation system for an industrial plant according to any one of claims 1 to 3, wherein the filter assembly (84) comprises a first-level filter screen (841) arranged in sequence along the wind flow direction , filter element (842) and secondary filter screen (843). 6 . The dust extraction and ventilation system for an industrial plant according to claim 5 , wherein the primary filter screen ( 841 ) is in the shape of a “U”-shaped frame, and the primary filter screen ( 841 ) and the shell The interior of the body (87) is detachably connected, and a sealing door (85) is opened on the casing (87) above the primary filter screen (841). 7 . The dust extraction and ventilation system for an industrial plant according to claim 6 , wherein a mounting block ( 86 ) for fixing a primary filter screen ( 841 ) is provided inside the casing ( 87 ), and the The upper edge of the primary filter screen (841) is clamped into the clamping hole on the installation block (86) through the buckle (83) for fixing.

Images