Reaction kettle tail gas treatment system

Abstract

The utility model discloses a reaction kettle tail gas treatment system which comprises a reaction kettle and a waste water collecting tank, the reaction kettle is connected with a tower column, a pressure difference control system is arranged between the reaction kettle and the tower column, and by the adoption of the reaction kettle tail gas treatment system, equipment blockage caused by material ejection can be avoided, and the tail gas treatment effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the production technical field, specifically, the utility model relates to a reaction kettle tail gas treatment system. BACKGROUND

[0002] At present, in the production process, due to the over-vigorous reaction of materials in a stage, the liquid level of materials in the kettle rises, when the liquid level rises too high, it can cause that the pressure difference before and after the tower column is too large, and the materials enter the tower column and the equipment installed behind under the action of the pressure difference, causing the equipment to be blocked, and it is time-consuming and laborious to clean up, seriously affecting the production efficiency, also affecting the treatment effect of tail gas, and the incomplete small molecular by-products and moisture in the tail gas can bring greater burden to the tail gas treatment.

[0003] The utility model patent with publication number CN210123366U discloses a safe sampling pressure reaction kettle on March 3, 2020, and the name is a safe sampling pressure reaction kettle, including pressure reaction kettle, sampling pipe, sampling jug with scale, nitrogen pipe and vent pipe, pressure reaction kettle is connected with sampling pipe, and the sampling pipe is installed with discharge valve, and the sampling pipe is connected with the sampling jug with scale, and the sampling jug is connected with nitrogen pipe and vent pipe respectively, and nitrogen pipe and vent pipe are installed with nitrogen inlet valve and tail gas outlet valve respectively, and the bottom of sampling jug is provided with sampling valve.The safe sampling pressure reaction kettle also cannot solve the technical problems recorded above. UTILITY MODEL CONTENT

[0004] The utility model discloses a reaction kettle tail gas treatment system that can avoid material top flushing and cause equipment blockage and improve tail gas treatment effect.

[0005] In order to realize the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0006] The reaction kettle tail gas treatment system comprises a reaction kettle and a wastewater collection tank, the reaction kettle is connected with a tower column, and a pressure difference control system is arranged between the reaction kettle and the tower column.

[0007] A mounting pipeline is arranged at the top end of the reaction kettle, a first pressure gauge is arranged on the mounting pipeline, the tower column comprises an outlet pipeline, a second pressure gauge is arranged on the outlet pipeline, an adjusting valve is arranged at the outlet end of the wastewater collection tank, and the pressure difference control system comprises a pressure difference sensor.

[0008] A buffer tank is arranged between the tower column and the wastewater collection tank.

[0009] A full condenser is arranged at the top of the wastewater collection tank.

[0010] The wastewater collection tank is connected with a waste gas treatment pipeline.

[0011] The tower column, the buffer tank and the total condenser are connected in sequence.

[0012] The installation pipeline is in a conical structure.

[0013] The technical effect of the utility model is: the reaction kettle tail gas treatment system of the utility model, through the pressure detection of reaction kettle and tower column outlet pipeline and the control of the internal pressure of regulating valve system by pressure gauge, avoid the material in the reaction kettle from entering into the subsequent equipment due to the pressure difference effect, avoid the equipment blockage, ensure the normal operation of the equipment, improve the production efficiency; through the setting of buffer pipe and total condenser, reduce the tail gas treatment burden, realize the separate treatment of waste materials, waste liquid and waste gas generated by reaction, which is beneficial to resource recovery and reduces the processing cost. BRIEF DESCRIPTION OF DRAWINGS

[0014] The present specification includes the following drawings, and the shown contents are respectively:

[0015] Figure 1 It is the schematic diagram of the reaction kettle tail gas treatment system of the utility model.

[0016] In the figure, the marks are: 1, reaction kettle; 2, tower column; 3, waste water collection tank; 4, buffer tank; 5, total condenser; 6, waste gas treatment pipe; 7, outlet pipeline; 8, first pressure gauge; 9, second pressure gauge; 10, pressure difference sensor; 11, regulating valve; 12, installation pipeline. DETAILED DESCRIPTION

[0017] The specific embodiment of the utility model is further explained in detail by the description of the embodiment by comparing with the drawings, the purpose is to help the technical personnel in the field to have more complete, accurate and deep understanding to the inventive concept and technical scheme of the utility model, and help its implementation.

[0018] As Figure 1 The reaction kettle 1 tail gas treatment system, including reaction kettle 1 and waste water collection tank 3, reaction kettle 1 is connected with tower column 2, and pressure difference control system is arranged between reaction kettle 1 and tower column 2. Reaction kettle 1 and tower column 2 realize the control of pressure in system equipment by pressure difference control system, reduce the pressure difference between reaction kettle 1 and tower column 2, solve the problem of material top flushing, and waste water collection tank 3 realizes the treatment of waste water.

[0019] As Figure 1As shown, the top end of the reactor 1 is provided with a mounting pipe 12, the mounting pipe 12 is provided with a first pressure gauge 8, the tower column 2 includes an outlet pipe 7, the outlet pipe 7 is provided with a second pressure gauge 9, the outlet end of the wastewater collection tank 3 is provided with a regulating valve 11, the differential pressure control system includes a differential pressure sensor 10, the differential pressure sensor 10 is electrically connected to the first pressure gauge 8, the second pressure gauge 9 and the regulating valve 11. Two pressure gauges are installed before and after the tower column 2, a differential pressure sensor 10 is installed between the two pressure gauges, and a regulating valve 11 is installed after the wastewater collection tank 3. The differential pressure sensor 10 and the regulating valve 11 are connected to the DCS interlocking program. When the pressure difference between the two pressure gauges is greater than the set value (such as 0.01 mpa), the regulating valve 11 will automatically close to form a pressure build-up state in the subsequent equipment of the tower column 2, and the internal pressure of the subsequent equipment of the tower column 2 will rise to prevent the continuous increase of the pressure difference before and after the tower column 2 from causing the material to rush to the top.

[0020] As shown in the figure, Figure 1 A buffer tank 4 is arranged between the tower column 2 and the wastewater collection tank 3. By arranging a buffer tank 4 in the tower column 2, small molecular by-products in the tail gas can be precipitated in the buffer tank 4, so that they will not enter the subsequent tail gas treatment device, that is, the waste material and waste gas in the tail gas are collected and treated separately, thereby reducing the burden of tail gas treatment.

[0021] As shown in the figure, Figure 1 A full condenser 5 is arranged at the top of the wastewater collection tank 3. A full condenser 5 is arranged behind the buffer tank 4, so that the humid part in the tail gas is liquefied into the wastewater tank through the heat exchange of the full condenser 5, so that the water and waste gas in the tail gas are separated and independently treated.

[0022] As shown in the figure, Figure 1 The waste gas treatment pipe 6 is connected to the top of the wastewater collection tank 3. The waste gas treatment pipe 6 passes the tail gas treated by the buffer tank 4 and the full condenser 5 into the waste gas treatment equipment for final treatment.

[0023] As shown in the figure, Figure 1 The tower column 2, the buffer tank 4 and the full condenser 5 are connected in sequence. The above structure can separate the waste material, waste liquid and waste gas generated in the reaction for collection and treatment. Separating the waste material, waste liquid and waste gas for treatment can avoid the mutual influence between different wastes, reduce the secondary pollution that may be generated in the treatment process, facilitate the realization of resource recycling, and reduce the treatment cost.

[0024] As shown in the figure, Figure 1 The mounting pipe 12 is in a conical structure. A pressure gauge is arranged at the top end of the reactor 1 through a mounting pipe 12, and the mounting pipe 12 is conical, which improves the difficulty of the material entering the mounting pipe 12, thereby effectively preventing the pressure gauge from being damaged by the material rushing to the top, resulting in inaccurate pressure value.

[0025] The working process is as follows: the tail gas generated by the material reaction in the reaction kettle 1 passes through the tower column 2, the buffer tank 4, the total condenser 5, the waste water collecting tank 3 and the waste gas treatment pipe 6 in turn, the buffer tank 4 removes the waste materials in the tail gas, the total condenser 5 and the waste water collecting tank 3 remove the waste liquid in the tail gas and collect the waste liquid, and the waste gas treatment pipe 6 treats the waste gas in the tail gas, so that the waste materials, the waste water and the waste gas in the tail gas are separately treated; if the material reaction process is too intense during production, there is a large pressure difference between the reaction kettle 1 and the outlet pipeline 7 of the tower column 2, at this time, the two pressure gauges detect the pressure difference, the signal is fed back to the regulating valve 11 through the pressure difference sensor 10, the regulating valve 11 is closed or the opening degree is reduced, so that the subsequent equipment of the tower column 2 forms a pressure build-up state, and since the reaction continues, the internal pressure of the subsequent equipment of the tower column 2 will continue to rise, so that the pressure difference between the reaction kettle 1 and the outlet pipeline 7 of the tower column 2 will be reduced, and the material will be difficult to occur the toppling phenomenon.

[0026] The tail gas treatment system of the reaction kettle 1 avoids that the material in the reaction kettle 1 enters the subsequent equipment due to the pressure difference, avoids that the equipment is blocked, ensures the normal operation of the equipment, improves the production efficiency, reduces the tail gas treatment burden by arranging the buffer pipe and the total condenser 5, realizes the separate treatment of the waste materials, the waste liquid and the waste gas generated by the reaction, and is beneficial to resource recovery and reduces the treatment cost.

[0027] The above is an exemplary description of the present application combined with the drawings. Obviously, the specific implementation of the present application is not limited by the above method. As long as various non-essential improvements are made by using the method concept and technical scheme of the present application, or the above concept and technical scheme of the present application are directly applied to other occasions without improvement, they are all within the protection scope of the present application.

Claims

1. A reactor (1) off-gas treatment system, characterized by: Including the reaction kettle (1) and wastewater collection tank (3), the reaction kettle (1) is connected with tower column (2), the reaction kettle (1) and tower column (2) are equipped with differential pressure control system;The top of the reaction kettle (1) is equipped with installation pipeline (12), the first pressure gauge (8) is equipped on the installation pipeline (12), the tower column (2) includes outlet pipeline (7), the second pressure gauge (9) is equipped on the outlet pipeline (7), the outlet end of the wastewater collection tank (3) is equipped with regulating valve (11), the differential pressure control system includes differential pressure sensor (10), the differential pressure sensor (10) electric signal connection first pressure gauge (8), second pressure gauge (9) and regulating valve (11).

2. The reactor (1) off-gas treatment system according to claim 1, characterized in that: The tower column (2) and wastewater collection tank (3) are equipped with buffer tank (4).

3. The reactor (1) off-gas treatment system according to claim 2, characterized in that: The top of the wastewater collection tank (3) is equipped with full condenser (5).

4. The reactor (1) off-gas treatment system according to claim 3, characterized in that: The top of the wastewater collection tank (3) is connected with waste gas treatment pipe (6).

5. The reactor (1) off-gas treatment system according to claim 4, characterized in that: The tower column (2), buffer tank (4) and full condenser (5) are sequentially connected.

6. The reactor (1) off-gas treatment system according to claim 1, characterized in that: The installation pipeline (12) is conical structure.

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