Deodorizing device of furfural hydrolysis kettle

Abstract

The utility model relates to the technical field of chemical production, in particular to a furfural hydrolysis kettle deodorizing device, which can effectively collect organic waste gas at the opening of a hydrolysis kettle in a centralized manner, so that the waste gas collection quantity of the hydrolysis kettle is reduced, and the treatment quantity of a subsequent organic gas treatment device is reduced. The phenomenon that organic waste gas is dispersed in a workshop in the corncob feeding process is avoided; comprising a hydrolysis pot body, an aldehyde steam pipeline, a deslagging pipeline, a steam pipeline, an odor removal assembly and a control assembly, the bottom of the hydrolysis pot body is connected with the deslagging pipeline, the deslagging pipeline is connected with the steam pipeline, the upper portion of the hydrolysis pot body is connected with the aldehyde steam pipeline, and the odor removal assembly is installed on one side of the top of the hydrolysis pot body. And the control assembly is mounted on the aldehyde steam pipeline, the deslagging pipeline and the steam pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical production, in particular to a deodorizing device for a furfural hydrolysis kettle. Background Art

[0002] Furfural is a chemical raw material, mainly used in synthetic resins, metallurgical casting, petroleum smelting, plastic products, anti-corrosion materials, pharmaceuticals, food additives and other aspects, and is widely used. In the processing of furfural, raw materials such as corn cobs need to be crushed, added with sulfuric acid and mixed, and then sent into a hydrolysis kettle to undergo hydrolysis reaction under the action of high-temperature steam. For example, the prior art announcement number CN215234162U proposes a hydrolysis kettle for producing furfural, which includes a hydrolysis kettle, a feed inlet is provided on the top of the hydrolysis kettle, a discharge pipe and a steam inlet pipe are provided at the bottom of the hydrolysis kettle, a stirring blade is provided inside the hydrolysis kettle through a stirring shaft, and a motor is provided above the hydrolysis kettle; the outer wall of the hydrolysis kettle is covered with an insulation layer, the interior of the insulation layer is penetrated with an electric heating wire, and the interior of the hydrolysis kettle is provided with a temperature sensor; a pressure gauge and an exhaust valve are provided above the hydrolysis kettle; and a PLC controller is provided on the outer wall of the hydrolysis kettle.

[0003] However, a large amount of organic waste gas is generated during the furfural production process, which contains a variety of harmful components, such as aldehydes, ketones, phenols, etc. These waste gases not only pollute the environment, but also have adverse effects on the health of workers. In general, the existing technology for the waste gas from the furfural pot mouth is to add an air collection hood at the mouth of the hydrolysis pot. While corn cobs are fed into the hydrolysis pot, the waste gas is collected at the same time. During the waste gas collection process, due to the open structure, a large amount of air will be inhaled, resulting in an excessive amount of waste gas collected. If the negative pressure at the air collection hood is low, the waste gas will not be collected in time, and the hydrolysis workshop will be filled with waste gas from the hydrolysis pot mouth. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a furfural hydrolysis kettle deodorization device which can effectively collect the organic waste gas from the hydrolysis kettle mouth, reduce the amount of waste gas collected from the hydrolysis kettle, reduce the processing capacity of the subsequent organic gas treatment device, and will not cause the organic waste gas to diffuse in the workshop during the corn cob feeding process.

[0005] The utility model discloses a deodorizing device for a furfural hydrolysis kettle, comprising a hydrolysis kettle body, an aldehyde steam pipeline, a slag discharge pipeline, a steam pipeline, a deodorizing component and a control component, wherein the bottom of the hydrolysis kettle body is connected with the slag discharge pipeline, the slag discharge pipeline is connected with the steam pipeline, the upper part of the hydrolysis kettle body is connected with the aldehyde steam pipeline, the deodorizing component is mounted on one side of the top of the hydrolysis kettle body, and the control component is mounted on the aldehyde steam pipeline, the slag discharge pipeline and the steam pipeline; when the hydrolysis kettle completes a hydrolysis cycle, the aldehyde steam pipeline is closed by the control component, while the steam pipeline remains in an open state, steam is continuously introduced into the hydrolysis kettle, and then the slag discharge pipeline is opened for the hydrolysis kettle to perform a slag discharge operation, and then the deodorizing component is opened and the slag discharge pipeline is closed at the same time, and the deodorizing system collects the waste gas from the negative pressure boiler mouth, because at this time, only the deodorizing component of the hydrolysis kettle is opened, and other pipelines are all in a closed state, so that the organic waste gas in the hydrolysis kettle can be effectively collected, the organic waste gas will not be caused to diffuse everywhere during the corn cob feeding process, the subsequent processing load of the organic waste gas is reduced, the investment of the organic waste gas treatment device is reduced, and the working environment of the operator is improved.

[0006] Preferably, the deodorization component includes an automatic control valve C and a deodorization pipe. The deodorization pipe is connected to the top side of the hydrolysis pot body, and the automatic control valve C is installed on the deodorization pipe. When the automatic control valve C on the deodorization pipe is opened, the deodorization system collects the waste gas from the negative pressure pot mouth. At this time, only the automatic control valve C on the deodorization system of the hydrolysis pot is opened, and all the automatic control valves on other pipes are in the closed state, which can effectively collect the organic waste gas in the hydrolysis pot.

[0007] Preferably, the control component includes a pressure monitor, an automatic control valve A, an automatic control valve B and an automatic control valve D. The pressure monitor is installed on the slag discharge pipe, the automatic control valve A is installed on the slag discharge pipe, the automatic control valve B is installed on the aldehyde steam pipe, and the automatic control valve D is installed on the steam pipe. When the hydrolysis pot completes a hydrolysis cycle, the automatic control valve B on the aldehyde steam pipe is closed, and the automatic control valve D on the steam pipe will remain open, and steam will continue to be introduced into the hydrolysis pot through the steam pipe. When the pressure on the pressure monitor shows 0.4 MPa, the automatic control valve D on the steam pipe will be closed, and the automatic control valve A on the slag discharge pipe will be opened, and the hydrolysis pot will perform slag discharge operation.

[0008] Preferably, a feeding hopper is connected to the middle of the top of the hydrolysis pot body, and a feed control valve is installed on the feeding hopper; corn cobs are fed through the feeding hopper, and the feeding of the feeding hopper is controlled by the feed control valve.

[0009] Preferably, it also includes a pressure monitor 2 and a hydrolysis pot mouth pressure monitor, the pressure monitor 2 is installed on the aldehyde vapor pipeline, and the hydrolysis pot mouth pressure monitor is installed on the top side of the hydrolysis pot body; when the pressure monitored by the pressure monitor 2 drops to 0, the automatic control valve C on the deodorization pipe is opened, and the automatic control valve A on the slag discharge pipe is closed at the same time, and the deodorization system collects the negative pressure boiler mouth exhaust gas. When the hydrolysis pot mouth pressure monitor at the hydrolysis pot mouth shows a negative pressure of -50 to -100 Pa, the automatic control valve C is closed to complete the collection of the exhaust gas in the hydrolysis pot body, and the hydrolysis pot mouth feed control valve is opened at the same time to carry out the next cycle of corn cob feeding, reaction and other operations.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: after the hydrolysis pot completes a hydrolysis cycle, the aldehyde steam pipeline is closed through the control component, while the steam pipeline remains open, and steam continues to be introduced into the hydrolysis pot. Then the slag discharge pipeline is opened to perform slag discharge operation on the hydrolysis pot, and then the deodorization component is opened and the slag discharge pipeline is closed at the same time. The deodorization system collects the waste gas from the negative pressure pot mouth. At this time, only the deodorization component of the hydrolysis pot is opened, and all other pipelines are in a closed state. The organic waste gas in the hydrolysis pot can be effectively collected, and the organic waste gas will not be diffused during the corn cob feeding process, thereby reducing the subsequent processing load of the organic waste gas, reducing the investment in the organic waste gas treatment device, and improving the working environment of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural diagram of the utility model;

[0012] Figure 2 It is a schematic diagram of the upper structure of the utility model;

[0013] Figure 3 It is a schematic diagram of the lower structure of the utility model;

[0014] Markings in the attached figure: 1. Pressure monitor; 2. Pressure monitor 2; 3. Automatic control valve A; 4. Automatic control valve B; 5. Automatic control valve C; 6. Feed control valve; 7. Automatic control valve D; 8. Hydrolysis pot mouth pressure monitor; 9. Hydrolysis pot body; 10. Deodorization pipe; 11. Aldehyde vapor pipe; 12. Slag discharge pipe; 13. Steam pipe. DETAILED DESCRIPTION

[0015] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0016] like Figures 1 to 3As shown, the bottom of the hydrolysis pot body 9 is connected to a slag discharge pipe 12, the slag discharge pipe 12 is connected to a steam pipe 13, the upper part of the hydrolysis pot body 9 is connected to an aldehyde steam pipe 11, a deodorization pipe 10 is connected to one side of the top of the hydrolysis pot body 9, an automatic control valve C5 is installed on the deodorization pipe 10, a pressure monitor 1 is installed on the slag discharge pipe 12, an automatic control valve A3 is installed on the slag discharge pipe 12, an automatic control valve B4 is installed on the aldehyde steam pipe 11, an automatic control valve D7 is installed on the steam pipe 13, a feeding hopper is connected to the middle of the top of the hydrolysis pot body 9, a feed control valve 6 is installed on the feeding hopper, a pressure monitor 2 is installed on the aldehyde steam pipe 11, and a hydrolysis pot port pressure monitor 8 is installed on one side of the top of the hydrolysis pot body 9;

[0017] When the hydrolysis pot body 9 completes a hydrolysis cycle, the automatic control valve B4 on the aldehyde steam pipeline 11 is closed, and the automatic control valve D7 on the steam pipeline 13 will remain open, and steam will continue to be introduced into the hydrolysis pot through the steam pipeline. When the pressure on the pressure monitor 1 shows 0.4MPa, the automatic control valve D7 on the steam pipeline 13 will be closed, and the automatic control valve A3 on the slag discharge pipeline 12 will be opened. The hydrolysis pot body 9 will perform slag discharge operation, and the automatic control valve C5 on the deodorization pipeline 10 will be opened. The deodorization system will collect the exhaust gas from the negative pressure boiler. At this time, only the automatic control valve C5 on the deodorization system of the hydrolysis pot is opened, and the automatic control valves on other pipelines are all in the closed state. The organic waste gas in the hydrolysis pot is effectively collected. When the pressure monitored by the pressure monitor 2 is reduced to 0, the automatic control valve C5 on the deodorization pipe 10 is opened, and the automatic control valve A3 on the slag discharge pipe 12 is closed at the same time. The deodorization system collects the waste gas from the negative pressure pot mouth. When the pressure monitor 8 at the pot mouth of the hydrolysis pot body 9 shows a negative pressure of -50 to 100 Pa, the automatic control valve C5 is closed to complete the waste gas collection in the hydrolysis pot body 9. At the same time, the feed control valve 6 at the pot mouth of the hydrolysis pot body 9 is opened, and the corn cobs are fed through the feeding hopper. The feeding of the feeding hopper is controlled by the feed control valve 6 to carry out the next cycle of corn cob feeding, reaction and other operations.

[0018] like Figures 1 to 3As shown, the deodorizing device of the furfural hydrolysis kettle of the present invention is as follows: when the hydrolysis pot body 9 completes a hydrolysis cycle, the automatic control valve B4 on the aldehyde steam pipeline 11 is closed, and the automatic control valve D7 on the steam pipeline 13 will remain open, and steam will continue to be supplied to the hydrolysis pot through the steam pipeline. When the pressure on the pressure monitor 1 shows 0.4MPa, the automatic control valve D7 on the steam pipeline 13 will be closed, and the automatic control valve A3 on the slag discharge pipeline 12 will be opened, and the hydrolysis pot body 9 will perform the slag discharge operation. When the pressure monitored by the pressure monitor 2 drops to 0, the automatic control valve C5 on the deodorizing pipeline 10 will be opened. , and at the same time close the automatic control valve A3 on the slag discharge pipe 12, and the deodorization system collects the negative pressure boiler mouth exhaust gas. At this time, only the automatic control valve C5 on the deodorization system of the hydrolysis pot body 9 is opened, and the automatic control valves on other pipelines are all in the closed state, which can effectively collect the organic waste gas in the hydrolysis pot body 9. When the boiler mouth pressure monitor 8 of the hydrolysis pot body 9 shows that the negative pressure is -50~-100Pa, close the automatic control valve C5 to complete the exhaust gas collection in the hydrolysis pot body 9, and at the same time open the boiler mouth feed control valve 6 of the hydrolysis pot body 9 to carry out the next cycle of corn cob feeding, reaction and other operations.

[0019] The main functions achieved by the utility model are: through the opening and closing of several control valves, the organic waste gas in the hydrolysis pot can be effectively collected, and the organic waste gas will not be diffused everywhere during the corn cob feeding process. Firstly, the subsequent processing load of the organic waste gas is reduced, and the investment in the organic waste gas treatment device is reduced. Secondly, the working environment of the operator is improved.

[0020] The pressure monitor 2, automatic control valve A3, automatic control valve B4, automatic control valve C5, feed control valve 6, automatic control valve D7 and hydrolysis pot port pressure monitor 8 of the furfural hydrolysis kettle deodorization device of the present invention are purchased on the market. Technicians in this industry only need to install and operate them according to the accompanying instruction manual, without the need for creative work by technicians in this field.

[0021] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. Furfural hydrolysis kettle deodorization device, characterized in that, The invention comprises a hydrolysis pot body (9), an aldehyde steam pipeline (11), a slag discharge pipeline (12), a steam pipeline (13), a deodorization component and a control component. The bottom of the hydrolysis pot body (9) is connected to the slag discharge pipeline (12), the slag discharge pipeline (12) is connected to the steam pipeline (13), the upper part of the hydrolysis pot body (9) is connected to the aldehyde steam pipeline (11), the deodorization component is installed on one side of the top of the hydrolysis pot body (9), and the control component is installed on the aldehyde steam pipeline (11), the slag discharge pipeline (12) and the steam pipeline (13).

2. The deodorizing device for furfural hydrolysis kettle according to claim 1, wherein: The deodorization component comprises an automatic control valve C (5) and a deodorization pipe (10). The deodorization pipe (10) is connected to one side of the top of the hydrolysis pot body (9). The automatic control valve C (5) is installed on the deodorization pipe (10).

3. The deodorizing device for furfural hydrolysis kettle according to claim 1, wherein: The control assembly includes a pressure monitor (1), an automatic control valve A (3), an automatic control valve B (4) and an automatic control valve D (7). The pressure monitor (1) is installed on the slag discharge pipeline (12), the automatic control valve A (3) is installed on the slag discharge pipeline (12), the automatic control valve B (4) is installed on the aldehyde steam pipeline (11), and the automatic control valve D (7) is installed on the steam pipeline (13).

4. The deodorizing device for furfural hydrolysis kettle according to claim 1, wherein: A feeding hopper is connected to the middle of the top of the hydrolysis pot body (9), and a feed control valve (6) is installed on the feeding hopper.

5. The deodorizing device for furfural hydrolysis kettle according to claim 1, characterized in that: The invention also includes a second pressure monitor (2) and a hydrolysis pot outlet pressure monitor (8). The second pressure monitor (2) is installed on the aldehyde steam pipeline (11), and the hydrolysis pot outlet pressure monitor (8) is installed on one side of the top of the hydrolysis pot body (9).

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