Air draft equipment for purifying waste gas of water reducing agent reaction kettle

Abstract

The utility model discloses exhaust equipment for purifying waste gas of a water reducing agent reaction kettle, which comprises an air pump, a circulating water pump, a cooling tower, a filter and a cooling tower, an air inlet at the bottom end of the cooling tower is connected with the filter, the other end of the filter is connected with the reaction kettle through a pipeline, and an air outlet at the top end of the cooling tower is connected with the air pump through a pipeline; the filter is of a detachable cylinder structure, an air inlet end and an air outlet end are arranged at the two ends of the filter respectively, and a filter screen is clamped in the filter in a limiting mode. A spirally coiled cold water pipe is arranged above the air inlet in the cooling tower, a water inlet end is arranged on the side wall of the top of the cooling tower, a water outlet end is arranged on the side wall of the bottom of the cooling tower, one end of the circulating water pump is connected with the water inlet end through a pipeline, and the other end of the circulating water pump is connected with the cooling tower through a pipeline; and the other end of the cooling tower is connected with the water outlet end through a pipeline. The reaction kettle waste gas extraction device can safely and effectively extract waste gas of a reaction kettle, reduces corrosion to an air extraction pump, and prolongs the service life of equipment.

Description

Technical Field

[0001] The utility model belongs to the technical field of polycarboxylic acid water reducers, and in particular relates to exhaust equipment for purifying waste gas from a water reducer reaction kettle. Background Art

[0002] Polycarboxylate water reducer is a high-performance water reducer and a cement dispersant in cement concrete. It is widely used in highways, bridges, dams, tunnels, high-rise buildings and other projects.

[0003] The preparation process of polycarboxylic acid water reducer is inseparable from the reactor, which can increase the reaction speed of the raw materials and promote the uniformity of raw material mixing through the stirring mechanism in the reactor.

[0004] During the raw material reaction process, high-temperature exhaust gas will be generated. In order to avoid excessive pressure in the reactor, the exhaust gas needs to be extracted and treated. The existing method is to directly extract it through a vacuum pump. However, the high-temperature exhaust gas contains impurities. The high temperature combined with the impurities will corrode the vacuum pump, seriously affecting its service life. Utility Model Content

[0005] The utility model aims to provide an exhaust device for purifying waste gas from a water reducing agent reactor, which can safely and effectively extract the waste gas from the reactor, reduce corrosion to the exhaust pump, and increase the service life of the equipment.

[0006] To achieve the above purpose, the utility model of the exhaust equipment for purifying the waste gas of the water reducing agent reactor comprises an exhaust pump, a circulating water pump, a cooling tower, a filter and a cooling tower, wherein the air inlet at the bottom end of the cooling tower is connected to the filter, the other end of the filter is connected to the reactor through a pipeline, and the exhaust port at the top end of the cooling tower is connected to the exhaust pump through a pipeline;

[0007] The filter is a detachable cylindrical structure, with an air inlet and an air outlet at both ends, and a filter screen is connected to the filter by a limit clamp inside the filter;

[0008] A spirally coiled cold water pipe is provided above the air inlet in the cooling tower. The cold water pipe is provided with a water inlet end on the top side wall of the cooling tower, and a water outlet end is provided on the bottom side wall of the cooling tower. One end of the circulating water pump is connected to the water inlet end through a pipeline, and the other end is connected to the cooling tower through a pipeline. The other end of the cooling tower is connected to the water outlet end through a pipeline.

[0009] As a further solution of the utility model: the filter includes a cylinder and a cover body that are threadedly connected, the air inlet end is arranged on the cover body, the air outlet end is arranged on the cylinder, the cover body is provided with an annular limiting groove, the filter net is a cylinder structure, and its opening limit is clamped in the annular limiting groove, a ventilation plate is provided in the cylinder, and the side of the ventilation plate away from the air outlet end is connected to a pressure plate through a spring.

[0010] As a further solution of the utility model: the cold water pipes are connected with wind shields at the descending inflection points, and the wind shields are fixed on the inner wall of the cooling tower and are distributed in an interval and staggered manner.

[0011] As a further solution of the utility model: the top of the cooling tower is provided with a spray port, the bottom is a funnel-shaped sewage outlet, and the sewage outlet is connected with a valve.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] A filter and a cooling tower are set at the front end of the vacuum pump. The filter can isolate and filter the impurities in the exhaust gas, and the cooling tower can cool the exhaust gas, thereby avoiding high temperature of the vacuum pump and prolonging its service life;

[0014] The filter adopts a detachable structure, and the internal filter can be disassembled and cleaned; the exhaust gas channel is extended by a baffle plate in the cooling tower to improve the cooling effect of the cold water pipe. If necessary, auxiliary atomization spray cooling treatment can be carried out through the spray port, and the spray port also helps to purify the exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the exhaust equipment for purifying the waste gas from the water reducing agent reactor.

[0016] Figure 2 It is a schematic diagram of the filter structure of the exhaust equipment for purifying the waste gas of the water reducing agent reactor.

[0017] In the figure: 1, vacuum pump, 2, pipeline, 3, cooling tower, 4, spray port, 5, water inlet, 6, circulating water pump, 7, cooling tower, 8, filter, 9, air inlet, 10, valve, 11, sewage outlet, 12, water outlet, 13, wind shield, 14, cold water pipe, 15, exhaust port;

[0018] 8.1, cover body, 8.2, air inlet end, 8.3, annular limit groove, 8.4, cylinder body, 8.5, filter screen, 8.6, pressure plate, 8.7, spring, 8.8, air outlet end, 8.9, ventilation plate. DETAILED DESCRIPTION

[0019] The utility model will be further described below in conjunction with the accompanying drawings.

[0020] like Figure 1 and Figure 2 As shown, the exhaust equipment for purifying the waste gas of the water reducing agent reactor includes an exhaust pump 1, a circulating water pump 6, a cooling tower 7, a filter 8 and a cooling tower 3. The air inlet 9 at the bottom end of the cooling tower 3 is connected to the filter 8, and the other end of the filter 8 is connected to the reactor through a pipeline 2. The exhaust port 15 at the top end of the cooling tower 3 is connected to the exhaust pump 1 through a pipeline 2;

[0021] The filter 8 is a detachable cylindrical structure, with an air inlet end 8.2 and an air outlet end 8.8 respectively provided at both ends. A filter screen 8.5 is connected to the inner limit clamp of the filter 8. The filter 8 is located at the front end of the entire device. The detachable filter 8 is used for easy maintenance and replacement.

[0022] A spirally coiled cold water pipe 14 is provided above the air inlet 9 in the cooling tower 3. The cold water pipe 14 is provided with a water inlet end 5 on the top side wall of the cooling tower 3, and a water outlet end 12 on the bottom side wall of the cooling tower 3. One end of the circulating water pump 6 is connected to the water inlet end 5 through a pipe 2, and the other end is connected to the cooling tower 7 through a pipe 2. The other end of the cooling tower 7 is connected to the water outlet end 12 through a pipe 2. The circulating cold water is used to cool the exhaust gas, and the intercepting and filtering effect of the filter 8 is combined with the cooling treatment of the cooling tower 3. After that, the high-temperature impurities corrosion can be avoided when passing through the vacuum pump 1, thereby increasing its service life.

[0023] In order to facilitate the maintenance of the filter 8, the filter 8 further includes a cylinder 8.4 and a cover body 8.1 that are threadedly connected. The air inlet end 8.2 is arranged on the cover body 8.1, and the air outlet end 8.8 is arranged on the cylinder 8.4. The cover body 8.1 is provided with an annular limit groove 8.3. The filter screen 8.5 is a cylinder structure, and its opening limit is clamped in the annular limit groove 8.3. A ventilation plate 8.9 is provided in the cylinder 8.4. The side of the ventilation plate 8.9 away from the air outlet end 8.8 is connected to a pressure plate 8.6 through a spring 8.7. The filter screen 8.5 can be removed separately for easy cleaning. During assembly, the pressure plate 8.6 connected to the spring 8.7 can provide a pressing effect on the filter screen 8.5 to prevent the filter screen 8.5 from being disengaged from the limit due to excessive exhaust gas flow rate.

[0024] In order to increase the cooling effect of the cooling tower 3, further, the cold water pipe 14 is connected with a wind shield 13 at the descending inflection point. The wind shield 13 is fixed on the inner wall of the cooling tower 3 and is distributed in an interval and staggered manner. A curved air duct is formed by multiple groups of wind shields 13, which can effectively extend the time that the exhaust gas is in the cooling tower 3, thereby improving the effect of the cold water pipe 14 and further achieving the cooling effect on the exhaust gas.

[0025] In order to facilitate the cleaning and maintenance of the cooling tower 3, a spray port 4 is provided at the top of the cooling tower 3, and a funnel-shaped sewage outlet 11 is provided at the bottom. A valve 10 is connected to the sewage outlet 11. When necessary, a cold water pipe 14 can be used for cooling. The spray port 4 can also provide a purification effect by using an atomizing nozzle.

[0026] When the utility model is used specifically: the vacuum pump 1 provides airflow power, the exhaust gas first enters the filter screen 8.5 in the filter 8 through the pipeline 2, is intercepted by the filter screen 8.5 and enters the cylinder 8.4, then passes through the ventilation plate 8.9 to form a secondary filtration, and then enters the cooling tower 3. The cooling tower 3 has a circulating water pump 6 and circulating cold water provided by the cooling tower 7. The circulating cold water in the cold water pipe 14 exchanges heat and cools the exhaust gas in the cooling tower 3, and the exhaust gas is finally discharged through the exhaust port 15 through the vacuum pump 1;

[0027] When the amount of waste gas is too large, auxiliary spraying can be performed through the spray port 4. When using the spray port 4, a certain amount of water flow must be released first to form a liquid level lower than the air inlet 9 at the bottom of the cooling tower 3, and then spraying can be started. The valve 10 is in an open state to control the flow rate and keep the sewage outlet 11 blocked to avoid the exhaust gas from being discharged from the sewage outlet 11, so that the sprayed atomized water vapor can purify and cool the exhaust gas.

Claims

1. An exhaust device for purifying waste gas from a water reducing agent reactor, comprising an exhaust pump (1), a circulating water pump (6), a cooling tower (7), a filter (8) and a cooling tower (3), It is characterized in that The air inlet (9) at the bottom end of the cooling tower (3) is connected to the filter (8), the other end of the filter (8) is connected to the reaction kettle via a pipeline (2), and the exhaust port (15) at the top end of the cooling tower (3) is connected to the vacuum pump (1) via a pipeline (2); The filter (8) is a detachable cylindrical structure, with an air inlet (8.2) and an air outlet (8.8) respectively provided at both ends, and a filter screen (8.5) is connected to a limit clamp inside the filter (8); A spirally coiled cold water pipe (14) is provided above the air inlet (9) in the cooling tower (3); a water inlet end (5) is provided on the top side wall of the cooling tower (3); a water outlet end (12) is provided on the bottom side wall of the cooling tower (3); one end of the circulating water pump (6) is connected to the water inlet end (5) via a pipeline (2); the other end is connected to the cooling tower (7) via a pipeline (2); and the other end of the cooling tower (7) is connected to the water outlet end (12) via a pipeline (2).

2. The exhaust equipment for purifying waste gas from a water reducing agent reactor according to claim 1, It is characterized in that The filter (8) comprises a cylinder (8.4) and a cover (8.1) connected by threads, the air inlet end (8.2) is arranged on the cover (8.1), the air outlet end (8.8) is arranged on the cylinder (8.4), the cover (8.1) is provided with an annular limiting groove (8.3), the filter screen (8.5) is a cylinder structure, and its opening is limited and clamped in the annular limiting groove (8.3), the cylinder (8.4) is provided with a ventilation plate (8.9), and the side of the ventilation plate (8.9) away from the air outlet end (8.8) is connected to a pressure plate (8.6) through a spring (8.7).

3. The exhaust device for purifying waste gas from a water reducing agent reactor according to claim 1 or 2, It is characterized in that The cold water pipes (14) are connected to wind shields (13) at the descending inflection points. The wind shields (13) are fixed on the inner wall of the cooling tower (3) and are distributed in an interval and staggered manner.

4. The exhaust device for purifying waste gas from a water reducing agent reactor according to claim 1 or 2, It is characterized in that The cooling tower (3) is provided with a spray port (4) at the top and a funnel-shaped sewage outlet (11) at the bottom, and a valve (10) is connected to the sewage outlet (11).

Images