CN211159239U - Casting exhaust-gas treatment clean system - Google Patents
Casting exhaust-gas treatment clean system Download PDFInfo
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- CN211159239U CN211159239U CN201921279401.XU CN201921279401U CN211159239U CN 211159239 U CN211159239 U CN 211159239U CN 201921279401 U CN201921279401 U CN 201921279401U CN 211159239 U CN211159239 U CN 211159239U
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Abstract
The utility model discloses a casting waste gas treatment and purification system, which comprises a primary purification tower, a photodecomposition device and a secondary purification tower; the collected casting waste gas enters the primary purification tower from the bottom of the primary purification tower, is purified step by step from bottom to top, enters the gas guide pipe from the top of the primary purification tower, then enters the photodecomposition device for decomposition, and the decomposed waste gas enters the secondary purification tower from the bottom of the secondary purification tower, is purified step by step to become clean gas and is discharged into the air from the top of the secondary purification tower. The utility model discloses a design of one-level purifying tower, photolysis device and second grade purifying tower, carry out the purification design step by step of absorbing earlier, decomposing again, resorption to casting waste gas, realized effectively absorbing the purification to the classification of casting waste gas on the one hand, on the other hand has effectively improved the absorption purifying effect; the utility model discloses a casting exhaust-gas treatment clean system, it is simple to purify the flow, and purifying effect is good, and market prospect is wide.
Description
Technical Field
The utility model relates to an exhaust-gas treatment technical field especially relates to a casting exhaust-gas treatment clean system.
Background
With the development of casting technology, foundry enterprises have widely adopted the new generation of self-hardening furan resin sand molding, and meanwhile, serious waste gas pollution is brought. A large amount of waste gas generated in the casting process contains dust particles, irritant gases such as sulfur dioxide, nitrogen dioxide, a small amount of nitric oxide and the like, and formaldehyde, phenol, benzene compounds and the like generated by resin decomposition, so that the environment is seriously polluted.
In the prior art, most of the treatment methods for the casting waste gas adopt the steps of separating dust, then adopting a multi-stage spraying system to spray and absorb the waste gas, and then carrying out plasma treatment on the residual gas, so that the treatment process is complicated and the energy consumption is high.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a casting exhaust-gas treatment clean system, can solve the above-mentioned problem that current casting exhaust-gas treatment exists.
In order to solve the technical problem, the utility model discloses a technical scheme be: provided is a casting exhaust gas treatment purification system, including: the device comprises a primary purification tower, a photolysis device and a secondary purification tower; the collected casting waste gas enters the primary purification tower from the bottom of the primary purification tower, is purified step by step from bottom to top, enters the gas guide pipe from the top of the primary purification tower, then enters the photodecomposition device for decomposition, and the decomposed waste gas enters the secondary purification tower from the bottom of the secondary purification tower, is purified step by step to become clean gas and is discharged into the air from the top of the secondary purification tower.
In a preferred embodiment of the utility model, an absorption sewage pond, a dewatering layer and a demisting layer are distributed in the primary purification tower from bottom to top layer by layer; the defogging layer is adjacent to the water removal layer, and the distance between the bottom of the water removal layer and the top surface of the absorption sewage pond is 1/3-1/2 of the height of the primary purification tower.
In a preferred embodiment of the present invention, the absorption sewage disposal pool is provided with a waste gas inlet pipe at one side, and a slope is arranged at the bottom of the opposite side, and the top of the slope is provided with an absorption liquid supply pipe; and a sewage outlet pipe is arranged at the bottom of the absorption sewage disposal pool.
In a preferred embodiment of the present invention, the mist removing layer is a wire mesh mist eliminator.
In a preferred embodiment of the present invention, the primary purification tower is provided with an observation window at the absorption and drainage pool.
In a preferred embodiment of the present invention, the second-stage purification tower is distributed with a spraying layer, a dewatering layer and an adsorption layer from top to bottom layer by layer.
In a preferred embodiment of the present invention, a suction pump is further included between the photolysis device and the second-stage purification tower, and an exhaust port of the suction pump extends into the second-stage purification tower and is located below the spray layer.
In a preferred embodiment of the present invention, the distance between the exhaust port of the air pump and the spraying layer is 1/2 to 2/3 of the tower height of the secondary purification tower.
In a preferred embodiment of the present invention, the spraying layer is a horizontal spraying layer.
In a preferred embodiment of the present invention, the adsorption layer is a mixed adsorption layer of carbon fiber and activated carbon.
The utility model has the advantages that: the utility model relates to a casting waste gas treatment purification system, through the design of one-level purifying tower, photolysis device and second grade purifying tower, carry out the purification design step by step of absorbing earlier, decomposing again, resorption to casting waste gas, realized effectively absorbing the purification to the classification of casting waste gas on the one hand, effectively improved the absorption purifying effect on the other hand; the utility model discloses a casting exhaust-gas treatment clean system, it is simple to purify the flow, and purifying effect is good, and market prospect is wide.
Drawings
Fig. 1 is a schematic perspective view of a preferred embodiment of a casting waste gas treatment and purification system according to the present invention;
the parts in the drawings are numbered as follows: 1. the device comprises a first-stage purification tower, 2, a photolysis device, 3, an air pump, 4, a second-stage purification tower, 5, an air guide pipe, 11, an absorption and sewage discharge pool, 12, a water removal layer, 13, a defogging layer, 111, a waste gas inlet pipe, 112, a slope, 113, an absorption liquid supply pipe, 114, a water-free outlet pipe, 41, a spraying layer, 42, a dehydration layer and 43, an adsorption layer.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Referring to fig. 1, an embodiment of the present invention includes:
example 1
The utility model discloses a casting exhaust-gas treatment clean system, include: a primary purification tower 1, a photolysis device 2, an air pump 3 and a secondary purification tower 4; collected casting waste gas enters the primary purification tower from the bottom of the primary purification tower 1, is purified step by step from bottom to top, enters the air guide tube 5 from the top of the primary purification tower 1, then enters the photodecomposition device 2 through the air guide tube 5 for decomposition, and the decomposed waste gas enters the secondary purification tower 4 from the air pumping action of the air pumping pump 3, is purified step by step to become clean gas and is discharged into the air from the top of the secondary purification tower 4.
Specifically, an absorption sewage pond 11, a dewatering layer 12 and a demisting layer 13 are distributed in the primary purification tower 1 from bottom to top layer by layer; the demisting layer 13 is a wire mesh demister and is adjacent to the dewatering layer 12, and the distance between the bottom of the dewatering layer 12 and the top surface of the absorption and sewage tank is 1/3-1/2 of the height of the primary purification tower 1. The absorption and sewage disposal pool 11 is provided with an exhaust gas inlet pipe 111 at one side, and the bottom of the opposite side is provided with a slope 112, and the top of the slope is provided with an absorption liquid supply pipe 113; the bottom of the absorption sewage tank 11 is provided with a sewage outlet pipe 114. The absorption and sewage tank 11 contains an alkaline solution, such as a sodium hydroxide solution, to neutralize and absorb the acid gas in the casting waste gas, and meanwhile, impurities, such as dust and the like, in the casting waste gas settle in the alkaline solution and are discharged through a sewage outlet pipe 114 at the bottom of the absorption and sewage tank 11 along the bottom of the slope 112. Through the design of absorption blowdown pond, when realizing absorbing waste gas, directly subside the impurity such as dust in the waste gas, saved the step of removing dust alone, effectively simplify the exhaust-gas treatment flow, raise the efficiency.
An observation window is arranged at the position, located in the absorption and sewage discharging pool 11, of the primary purification tower 1, so that the liquid level in the absorption and sewage discharging pool 11 can be observed conveniently.
The secondary purification tower 4 is distributed with a spraying layer 41, a dehydration layer 42 and an adsorption layer 43 from top to bottom layer by layer. The spraying layer 41 is a horizontal spraying layer, the exhaust port of the air pump 3 extends into the secondary purification tower 4 and is positioned below the spraying layer 4, and the distance between the exhaust port and the spraying layer 41 is 1/2-2/3 of the height in the secondary purification tower 4, so that the exhaust gas can be fully absorbed.
The water removal layer 12 is a soda lime layer, and can further absorb acid gas components which are not absorbed in the exhaust gas while drying and absorbing water.
The dehydration layer 42 is anhydrous calcium chloride.
The adsorption layer 43 is a mixed adsorption layer obtained by mixing carbon fibers and activated carbon in a mass ratio of 3:1, and can sufficiently absorb, purify and decompose gas components to obtain clean air.
The utility model relates to a casting waste gas treatment purification system, through the design of one-level purifying tower, photolysis device and second grade purifying tower, carry out the purification design step by step of absorbing earlier, decomposing again, resorption to casting waste gas, realized effectively absorbing the purification to the classification of casting waste gas on the one hand, effectively improved the absorption purifying effect on the other hand; the utility model discloses a casting exhaust-gas treatment clean system, it is simple to purify the flow, and purifying effect is good, and market prospect is wide.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the products of the present invention are usually placed when used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element to which the term refers must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A casting exhaust treatment purification system, comprising: the device comprises a primary purification tower, a photolysis device and a secondary purification tower; the collected casting waste gas enters the primary purification tower from the bottom of the primary purification tower, is purified step by step from bottom to top, enters the gas guide pipe from the top of the primary purification tower, then enters the photodecomposition device for decomposition, and the decomposed waste gas enters the secondary purification tower from the bottom of the secondary purification tower, is purified step by step to become clean gas and is discharged into the air from the top of the secondary purification tower.
2. The casting waste gas treatment and purification system according to claim 1, wherein an absorption sewage pond, a water removal layer and a demisting layer are distributed in the primary purification tower from bottom to top; the defogging layer is adjacent to the water removal layer, and the distance between the bottom of the water removal layer and the top surface of the absorption sewage pond is 1/3-1/2 of the height of the primary purification tower.
3. The casting waste gas treatment and purification system according to claim 2, wherein the absorption sewage pool is provided with a waste gas inlet pipe on one side, and is provided with a slope on the bottom of the opposite side, and the top of the slope is provided with an absorption liquid supply pipe; and a sewage outlet pipe is arranged at the bottom of the absorption sewage disposal pool.
4. The casting exhaust treatment purification system of claim 2, wherein the demister layer is a wire mesh demister.
5. The casting waste gas treatment and purification system according to claim 1, wherein the secondary purification tower is provided with a spraying layer, a dehydration layer and an adsorption layer which are distributed layer by layer from top to bottom.
6. The foundry waste gas treatment and purification system of claim 2, wherein the primary purification tower is provided with a viewing window at the absorption blowdown tank.
7. The casting waste gas treatment and purification system according to claim 5, further comprising a suction pump between the light decomposition device and the secondary purification tower, wherein an exhaust port of the suction pump extends into the secondary purification tower and is located below the spray layer.
8. The casting waste gas treatment and purification system according to claim 7, wherein the distance between the exhaust port of the suction pump and the spray layer is 1/2-2/3 of the tower inner height of the secondary purification tower.
9. The casting exhaust gas treatment purification system of claim 8, wherein the spray layer is a horizontal spray layer.
10. The foundry waste gas treatment and purification system of claim 5, wherein the adsorption layer is a mixed adsorption layer of carbon fibers and activated carbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921279401.XU CN211159239U (en) | 2019-08-08 | 2019-08-08 | Casting exhaust-gas treatment clean system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921279401.XU CN211159239U (en) | 2019-08-08 | 2019-08-08 | Casting exhaust-gas treatment clean system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211159239U true CN211159239U (en) | 2020-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921279401.XU Expired - Fee Related CN211159239U (en) | 2019-08-08 | 2019-08-08 | Casting exhaust-gas treatment clean system |
Country Status (1)
| Country | Link |
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| CN (1) | CN211159239U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111906255A (en) * | 2020-09-04 | 2020-11-10 | 中山市泽一照明科技有限公司 | Environment-friendly energy-saving casting forming die |
-
2019
- 2019-08-08 CN CN201921279401.XU patent/CN211159239U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111906255A (en) * | 2020-09-04 | 2020-11-10 | 中山市泽一照明科技有限公司 | Environment-friendly energy-saving casting forming die |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200804 Termination date: 20210808 |