Anti-sublimation device for reaction kettle

Abstract

The utility model relates to the technical field of chemical equipment, in particular to an anti-sublimation device for a reaction kettle, which is characterized by comprising a filler pipe, a multi-stage condensation component and a receiving tank which are sequentially connected through a pipeline, and the filler pipe is filled with nano anti-sublimation filler. According to the anti-sublimation device for the reaction kettle, sublimation materials are timely returned to a reaction system during process production in the reaction kettle, the problems of process failure and potential safety hazards caused by sublimation of raw materials in the production process are solved, the sublimation materials can be timely returned to the reaction system to participate in the reaction, condensation waste is avoided, and the production efficiency is improved. The problems of incomplete reaction, low yield and failure of the whole production process in the prior art are solved, and the potential safety hazard of blocking a reaction system is eliminated.

Description

TECHNICAL FIELD

[0001] The utility model relates to chemical equipment technical field, concretely relates to a reaction kettle anti -sublimation device. BACKGROUND

[0002] In the process of chemical production, part of reaction raw materials is easy to sublimate in the reaction process, which not only causes the loss of raw materials, but also causes a series of chain effects, such as changing the originally accurately set mixture ratio, making the whole production process unstable or even out of control, and then threatening the quality stability of subsequent products; Therefore, the part of sublimation material cannot participate in the target reaction, resulting in unstable reaction material ratio, incomplete reaction, reduced yield, directly affecting product purity, making the whole process production process fail, and the lost raw material may also enter the condensing system, causing the condenser to be blocked, and the cleaning process to be abnormally difficult, and long-term accumulation of blockage is not conducive to chemical safety production.

[0003] At present, the most commonly used methods for such problems are: reducing the gas escape probability by increasing the system pressure, reducing the phase change speed by reducing the temperature, and filtering out granular products by using porous media, which causes blocking when sublimation occurs; However, these methods have limitations and potential drawbacks, increasing the system pressure makes it difficult to discharge water and other reaction products, prolonging the reaction time; Reducing the temperature also makes the reaction too slow, prolonging the reaction time; The use of porous media filtering is more dependent on the selection of specific materials, so the application range is limited and not flexible and universal, therefore, in the actual production process of the reaction kettle, it is urgent to solve the problem of returning the sublimated material to the reaction system in time. UTILITY MODEL CONTENT

[0004] In order to make the sublimated material return to the reaction system in time during the process production in the reaction kettle, overcome the problem of process failure and safety hazard caused by sublimation of raw materials in the production process, the application provides a reaction kettle anti-sublimation device, which can return the sublimated material to the reaction system in time to participate in the reaction, avoid condensation waste, incomplete reaction, reduced yield, and make the whole process production process fail, and eliminate the safety hazard of blocking the reaction system.

[0005] The application provides a reaction kettle anti-sublimation device, which adopts the following technical scheme:

[0006] A reaction kettle anti-sublimation device, which comprises a filler pipe, a multi-stage condensing assembly and a receiving tank connected in sequence through pipelines; The filler pipe is filled with nano anti-sublimation filler.

[0007] By adopting the technical scheme, the dust and sublimated material are discharged from the exhaust port of the reaction kettle along with the process reaction, enter the filler pipe first, the filler in the filler pipe intercepts a large amount of sublimated material, the unintercepted material is slowed up and enters the multi-stage condensing assembly, the sublimated material condensed by the multi-stage condensing assembly flows back into the reaction kettle to continue the process reaction, and some non-condensable gas or dust is collected into the receiving tank.

[0008] In a specific implementable scheme, the nano anti-sublimation material is one of superfine activated carbon powder and hot melt adhesive powder.

[0009] By adopting the technical scheme, the superfine activated carbon powder and hot melt adhesive powder have a large number of pore structures inside, so that a large amount of sublimated material is intercepted, the nano anti-sublimation filler does not react with the reaction sublimated material, the unintercepted sublimated material can pass through the filler pipe, the flow rate of the sublimated material is reduced, the escape rate of the sublimated material is reduced, and then slowly enters the next process.

[0010] In a specific implementable scheme, the multi-stage condensing assembly comprises a vertical condenser, and the vertical condenser is connected with a horizontal condenser through a pipeline.

[0011] By adopting the technical scheme, the unintercepted sublimated material can directly enter the vertical condenser through the filler pipe, the vertical condenser is condensed by the heat exchange plate, so that part of the material vapor is condensed and directly flows downward, the sublimated material previously intercepted on the filler is washed back to the reaction kettle when flowing through the filler pipe, continues to participate in the process production, the escape rate of the sublimated material is slowed down, the backflow rate is accelerated, the sublimated material not condensed by the vertical condenser enters the horizontal condenser through the pipeline, continues to be condensed, and by alternately arranging a plurality of vertical condensers and a plurality of horizontal condensers, the sublimated material is cleaned and returned to the system to participate in the reaction, so that the problems of waste of sublimated material, unstable reaction material ratio, incomplete reaction, and reduced yield are avoided.

[0012] In a specific implementable scheme, the vertical condenser is provided with a circulating water tank at the bottom, the circulating water tank is communicated with a circulating water pump and a circulating backwater pump, the circulating water pump is arranged at the lower end of the vertical condenser, and the circulating backwater pump is arranged at the upper end of the vertical condenser.

[0013] By adopting the technical scheme, the circulating water backflow device is connected to the upper end and the lower end of the vertical condenser, so that the backflow water enters from the lower end and is discharged from the upper end, the flow direction of the circulating water is opposite to the flow direction of the sublimated material, the condenser is cooled faster, and the condensing effect is better.

[0014] In one specific implementation, the horizontal condenser is connected with a water tank through a water pipe, the water tank is connected with a water inlet pump and a water return pump, the water inlet pump is arranged at the lower right end of the horizontal condenser, and the water return pump is arranged at the upper left end of the horizontal condenser.

[0015] By adopting the above technical scheme, the water return device is connected at the upper left end and the lower right end of the horizontal condenser, so that the return water enters from the lower right end and is discharged from the upper left end, the flowing direction of the return water is opposite to the flowing direction of the sublimated material, and the return water is more in contact with the condensing pipe, so that the condenser is cooled faster, and the horizontal condenser has better condensing effect.

[0016] In one specific implementation, the horizontal condenser is connected with a receiving tank through a pipeline.

[0017] By adopting the above technical scheme, the receiving tank is arranged, so that a small amount of non-condensable gas and dust and other impurities in the material are recycled, environmental pollution is prevented, the production environment is comfortable and dust-free, and the health of the workers is ensured.

[0018] In one specific implementation, a temperature sensor is arranged between the horizontal condenser and the vertical condenser.

[0019] By adopting the above technical scheme, the temperature sensor is arranged, so that the condensing effect is ensured, when the temperature exceeds the process temperature, the flow rate of the material and the flow rate of the circulating water are adjusted, and the condensing effect of the vertical condenser is controlled. The sublimated material is prevented from being overloaded, and the condensing device is prevented from being damaged for long-term use.

[0020] In one specific implementation, the filler pipe is filled with nano anti-sublimation filler, and the volume of the nano anti-sublimation filler is not less than 1 / 5 of the inner volume of the filler tower.

[0021] By adopting the above technical scheme, if the volume of the nano anti-sublimation filler is too low, the effect of intercepting and blocking and reducing the escape rate of the sublimated material cannot be achieved.

[0022] In summary, the present application has at least one of the following beneficial technical effects:

[0023] 1. By arranging the filler pipe, the multi-stage condensing assembly and the receiving tank, the dust and the sublimated material are discharged from the exhaust port of the reaction kettle as the process reaction proceeds, enter the filler pipe first, the filler in the filler pipe intercepts a large amount of sublimated material, the material that is not intercepted is slowed down and rises, enters the multi-stage condensing assembly, the sublimated material condensed by the multi-stage condensing assembly flows back into the reaction kettle to continue participating in the process reaction, and some non-condensable gas or dust is collected into the receiving tank.

[0024] 2. The unintercepted sublimation material can directly enter the vertical cooling pipe through the filler pipe, the vertical condenser is condensed through the heat exchange plate, part of the material water vapor is condensed and directly flows downward, the sublimation material previously intercepted on the filler is washed back to the reaction kettle when flowing through the filler pipe, continues to participate in the process production, the sublimation material escape rate is slowed down, the reflux rate is accelerated, the sublimation material not condensed by the vertical condenser enters the horizontal condenser through the pipeline, continues to condense, the sublimation material is cleaned and returned to the system to participate in the reaction, the sublimation material is avoided to be wasted, the problems of unstable reaction material ratio, incomplete reaction and reduced yield are prevented.

[0025] 3. The water reflux device is connected to the left upper end and the right lower end of the horizontal condenser, the reflux water enters from the right lower end and is discharged from the left upper end, the flow direction of the reflux water is opposite to the flow direction of the sublimation material, and the reflux water is more in contact with the condensing pipe, so that the condenser is cooled faster, and the horizontal condenser has better condensing effect. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a schematic diagram of a reaction kettle anti-sublimation device and a reaction kettle.

[0027] Figure 2 It is Figure 1 is an enlarged view of part A in FIG. 1.

[0028] The reference signs are explained as follows: 1, filler pipe; 2, vertical condenser; 3, horizontal condenser; 11, circulating water tank; 12, circulating water pump; 121, circulating backwater pump; 122, water tank; 13, water inlet pump; 131, backwater pump; 132, receiving tank; 5, temperature sensor. DETAILED DESCRIPTION

[0029] The following will be described in detail in combination with the accompanying Figures 1-2 The application is further described in detail.

[0030] The application discloses a reaction kettle anti-sublimation device.

[0031] Reference Figure 1 and Figure 2The reaction kettle anti-sublimation device comprises a filler pipe 1, a multi-stage condensing assembly and a receiving tank 132 connected in sequence through pipelines; dust and sublimation materials are discharged from the exhaust port of the reaction kettle, first enter the filler pipe 1, the filler pipe 1 is filled with nano anti-sublimation filler, the superfine activated carbon powder has a particle size of 5-50 nm and accounts for 4 / 5 of the internal volume of the filler pipe, a large amount of sublimation materials are intercepted, the unintercepted materials are slowed down and then rise, enter the multi-stage condensing assembly, the sublimation materials condensed through the multi-stage condensing assembly flow back into the reaction kettle to continue to participate in the process reaction, and some non-condensable gases or dusts are collected into the receiving tank 132. In the embodiment, the multi-stage condensing assembly comprises a vertical condenser 2, and the vertical condenser 2 is connected with a horizontal condenser 3 through a pipeline. The vertical condenser 2 is provided with a circulating water tank 11 at the bottom, the circulating water tank 11 is connected with a circulating water pump 12 and a circulating backwater pump 121, the circulating water pump 12 is arranged at the lower end of the vertical condenser 2, the horizontal condenser 3 is connected with a water tank 122 through a water pipe, the water tank 122 is connected with a water inlet pump 13 and a backwater pump 131, the water inlet pump 13 is arranged at the lower right end of the horizontal condenser 3, and the backwater pump 131 is arranged at the upper left end of the horizontal condenser 3. The flowing direction of water in the vertical condenser 2 and the horizontal condenser 3 connected therewith is opposite to the flowing direction of the sublimation materials, so that the condenser can be cooled faster and the condensing effect is better. A temperature sensor 5 is arranged between the horizontal condenser 3 and the vertical condenser 2.

[0032] The implementation principle of the embodiment is that: through the arrangement of the filler pipe 1, the multi-stage condensing assembly and the receiving tank 132, as the process reaction in the reaction kettle proceeds, dust and sublimation materials are discharged from the exhaust port of the reaction kettle, first enter the filler pipe 1, the filler in the filler pipe 1 intercepts a large amount of superfine activated carbon powder, the unintercepted materials are slowed down and then rise, enter the multi-stage condensing assembly, the vertical condenser 2 is cooled through the heat exchange plate, so that part of the materials are condensed into water vapor and directly flow downward, the sublimation materials previously intercepted on the filler are washed back into the reaction kettle when flowing through the filler pipe 1, continue to participate in the process production, enter the horizontal condenser 3 through the pipeline, continue to condense, so that the sublimation materials are cleaned and returned to the system to participate in the reaction, the problem of waste of sublimation materials, unstable reaction material ratio, incomplete reaction and reduced yield is avoided, and some non-condensable gases or dusts are collected into the receiving tank 132, so that the safety hidden danger of blocking the reaction system is eliminated. The above are preferred embodiments of the application, and do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape and principle of the application should be covered in the protection scope of the application.

Claims

1. A reactor vessel anti-sublimation device, characterized by, It includes filler pipe (1), multistage condensing assembly and receiving tank (132) connected in sequence by pipeline; the filler pipe (1) is filled with nano anti-sublimation filler.

2. The anti-sublimation device of a reaction kettle according to claim 1, characterized in that, The nano anti-sublimation material is one of superfine activated carbon powder and hot melt adhesive powder.

3. The apparatus according to claim 1, wherein The multistage condensing assembly includes vertical condenser (2) connected with horizontal condenser (3) by pipeline.

4. The apparatus according to claim 3, wherein The vertical condenser (2) is provided with circulating water tank (11) at the bottom, and the circulating water tank (11) is communicated with circulating water pump (12) and circulating backwater pump (121), the circulating water pump (12) is arranged at the lower end of the vertical condenser (2), and the circulating backwater pump (121) is arranged at the upper end of the vertical condenser (2).

5. The apparatus according to claim 3, wherein the apparatus is characterized by: The horizontal condenser (3) is connected with water tank (122) through water pipe, and the water tank (122) is communicated with water pump (13) and backwater pump (131), the water pump (13) is arranged at the lower right end of the horizontal condenser (3), and the backwater pump (131) is arranged at the upper left end of the horizontal condenser (3).

6. The apparatus according to claim 3, wherein The horizontal condenser (3) is connected with receiving tank (132) through pipeline.

7. The apparatus according to claim 3, wherein The temperature sensor (5) is arranged between the horizontal condenser (3) and the vertical condenser (2).

8. The apparatus according to claim 1, wherein The volume of the nano anti-sublimation filler filled in the filler pipe (1) is not less than 1 / 5 of the content volume of the filler tower.

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