A polycarboxylate water reducer vacuum buffer tank

Abstract

The present application relates to the technical field of polycarboxylate water-reducing agent processing equipment, and specifically discloses a polycarboxylate water-reducing agent vacuum buffer tank, which includes a main tank and a vacuum tube fixedly installed on the top of the main tank, wherein the bottom of the vacuum tube is provided with an annular inlet, in which a filter screen is sealed and embedded, and the filter screen divides the vacuum tube into two parts, an upper part and an lower part. When the vacuum tube draws air into the main tank, the filter screen can filter out all the materials in the air, so that the materials will not enter the upper part of the vacuum tube, thereby protecting the use of the vacuum pump from being affected, and the vacuum tube can continuously draw air from the main tank, and the vacuum tube does not need to stop operating during the feeding process in the main tank, which is convenient for controlling the vacuum degree in the main tank and ensuring the quality of the final product in the main tank.

Description

Technical Field

[0001] The utility model relates to the technical field of polycarboxylate water-reducing agent processing equipment, in particular to a polycarboxylate water-reducing agent vacuum buffer tank. Background Art

[0002] Polycarboxylate water reducer is a high-performance water reducer and a cement dispersant used in cement concrete. It is widely used in projects such as roads, bridges, dams, tunnels, and high-rise buildings. In the production process of polycarboxylate water reducer, in order to ensure the quality and stability of the product, certain raw materials or intermediates need to be vacuum treated in a vacuum buffer tank. Through vacuum treatment, the pollution of materials by external air, impurities, etc. can be effectively avoided or reduced.

[0003] In order to prevent the material in the vacuum buffer tank from entering the vacuum tube during the process of extracting air, and the material in the vacuum tube entering the air pump, thereby affecting the use of the air pump, the Chinese utility model patent with the publication number "CN217533999U" discloses a vacuum buffer tank for processing viscosity-reducing polycarboxylic acid water-reducing agent. This tank is provided with a vacuum tube, a piston, a guide rod and a spring. When the main tank needs to be vacuum treated, the air pump is started, and the piston inside the baffle ring is extracted by the air pressure of the air pump, and will detach from the baffle ring and slide upward along the guide rod, thereby opening the bottom end of the vacuum tube and extracting the air inside the main tank. When the extraction is completed, the air pump is turned off. At this time, the spring will push the inner block downward along the inner rod, driving the piston to move downward along the slide groove until the piston is embedded in the baffle ring, closing the bottom end of the vacuum tube, and preventing the material from entering the vacuum tube during the feeding process through the feed pipe. Therefore, this vacuum tube can only draw a vacuum when no material is being fed, but not when feeding. The air in the main tank cannot be extracted at any time, resulting in the vacuum degree in the buffer tank being unable to be controlled during the feeding process, which will still affect the quality of the final product. Moreover, when no material is being fed, it cannot be guaranteed that all the material has been dissolved. At this time, when the bottom opening of the vacuum tube is opened to extract gas, there is still a possibility that the vacuum tube will draw in material. Utility Model Content

[0004] The utility model aims to provide a polycarboxylate water-reducing agent vacuum buffer tank to solve the problem that the vacuum tube cannot extract the air in the main tank at any time, and there is still a possibility of sucking in materials during the process of extracting the air in the main tank.

[0005] In order to solve the above problems, the technical solutions provided are as follows:

[0006] A polycarboxylate water-reducing agent vacuum buffer tank comprises a main tank and a vacuum tube fixedly installed on the top of the main tank, wherein the bottom of the vacuum tube is provided with an annular inlet, a filter screen is sealed and embedded in the annular inlet, and the filter screen divides the vacuum tube into two parts, an upper part and an lower part.

[0007] The basic principle and beneficial effect of the above technical solution are: when the vacuum tube draws air into the main tank, the filter net can filter out all the materials in the air, so that the materials will not enter the upper part of the vacuum tube, thereby protecting the use of the vacuum pump from being affected, and this vacuum tube can continuously draw air from the main tank, and the vacuum tube does not need to stop operating during the feeding process in the main tank, which is convenient for controlling the vacuum degree in the main tank and ensuring the quality of the final product in the main tank.

[0008] Furthermore, a filter sleeve is nested on the periphery of the filter screen, and there are two rings on the filter sleeve, and the two rings are distributed in an inverted 8 shape, one of the rings has a filter screen embedded in the vacuum tube from the annular inlet, and the other ring is placed outside the vacuum tube. A rotating shaft is fixedly connected between the two rings, and the rotating shaft is outside the vacuum tube. The positions of the two rings can be interchanged by rotating the rotating shaft 180°. A motor is fixedly connected to the end of the rotating shaft, and the side of the motor is fixedly connected to the outside of the vacuum tube. The filter screen needs to be replaced after being used for a period of time. When replacing the filter screen in the vacuum tube, first insert the new filter screen into the ring placed outside the vacuum tube, start the motor to drive the rotating shaft to rotate 180°, and the positions of the two rings of the filter sleeve are interchanged, so that the ring with the new filter screen is embedded in the annular inlet, and the ring with the old filter screen in the vacuum tube is rotated out of the vacuum tube, and the replacement of the filter screen is completed.

[0009] Furthermore, a sealing sleeve is provided on the outer periphery of the filter sleeve, which enables the filter sleeve to maintain a sealed state when embedded in the annular inlet, thereby preventing the vacuum tube from being affected by external air when drawing air into the main tank.

[0010] Furthermore, the upper end of the vacuum tube is connected to a branch tube, and the end of the branch tube away from the vacuum tube is threadedly connected to a pressure-type gas nozzle. The pressure-type gas nozzle is opened and aimed at the replaced old filter screen, and part of the gas extracted from the vacuum tube flows out through the branch tube and blows toward the old filter screen, so that the residue on the old filter screen is cleaned, and the gas extracted from the vacuum tube is reused.

[0011] Furthermore, the branch pipe is a telescopic pipe, which is convenient to stretch and can flexibly adjust the blowing convenience of the pressure-type air nozzle.

[0012] Furthermore, a vacuum sensor is provided at the top of the main tank, which can monitor the vacuum degree in the main tank in real time, and the vacuum sensor cooperates with the vacuum tube to conveniently control the change of the vacuum degree in the main tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of an embodiment of the utility model.

[0014] Figure 2 It is a schematic diagram of the front view structure of the vacuum tube;

[0015] Figure 3It is a schematic diagram of the front cross-sectional structure of the vacuum tube;

[0016] Figure 4 It is a schematic diagram of the top cross-sectional structure of the filter sleeve.

[0017] The figure marks in the drawings of the specification include: main tank 1, vacuum tube 2, vacuum sensor 3, feed port 4, vacuum pump 5, discharge port 6, support leg 7, branch pipe 8, pressure air nozzle 9, annular inlet 10, filter sleeve 11, filter screen 12, collar 13, sealing sleeve 14, rotating shaft 15, and motor 16. DETAILED DESCRIPTION

[0018] The following is further described in detail through specific implementation methods:

[0019] The embodiment is basically as shown in the attached Figure 1-4 As shown:

[0020] A polycarboxylate water reducer vacuum buffer tank, such as Figure 1 As shown, it includes a main tank 1 and a vacuum tube 2 fixedly installed at the top of the main tank 1. A vacuum sensor 3 is provided at the top of the main tank 1 and is located on the left side of the vacuum tube 2. A feed inlet 4 is provided on the right side of the main tank 1. A vacuum pump 5 connected to the vacuum tube 2 is installed on the left side of the main tank 1. A discharge port 6 is provided at the bottom of the main tank 1. The main tank 1 is suspended by supporting legs 7. A branch pipe 8 is connected to the upper end of the vacuum tube 2. The branch pipe 8 is a telescopic pipe. The end of the branch pipe 8 away from the vacuum tube 2 is threadedly connected with a pressure-type air nozzle 9. Figure 2 As shown, the bottom end of the vacuum tube 2 is provided with an annular inlet 10. Figure 3 As shown, a filter sleeve 11 is sealed and embedded in the annular inlet 10, a filter screen 12 is sleeved in the filter sleeve 11, and the filter screen 12 divides the vacuum tube 2 into two parts, an upper part and a lower part.

[0021] like Figure 4 As shown, there are two collars 13 on the filter sleeve 11, and a sealing sleeve 14 is provided on the outer periphery of the collar 13. The two collars 13 are distributed in an inverted 8 shape, one of the collars 13 is sleeved with a filter screen 12 and is embedded in the vacuum tube 2 from the annular inlet 10, and the other collar 13 is placed outside the vacuum tube 2. A rotating shaft 15 is welded between the two collars 13, and the rotating shaft 15 is located outside the vacuum tube 2. The rotating shaft 15 can rotate 180° to interchange the positions of the two collars 13. The top end of the rotating shaft 15 is fixedly connected to the output shaft of the motor 16, and the side of the motor 16 is fixedly connected to the outside of the vacuum tube 2.

[0022] The specific implementation process is as follows:

[0023] Turn on the vacuum pump 5 so that the vacuum tube 2 draws air into the main tank 1. When the vacuum tube 2 draws air, the filter 12 can filter out all the materials in the air, and the materials will not enter the upper part of the vacuum tube 2, thereby protecting the use of the vacuum pump 5 from being affected. In addition, the vacuum tube 2 can continuously draw air from the main tank 1, and the vacuum tube 2 does not need to stop operating during the feeding process in the main tank 1. The vacuum pump 5 works together with the vacuum sensor 3 to facilitate the control of the vacuum degree in the main tank 1 and ensure the quality of the final product in the main tank 1.

[0024] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A polycarboxylate water-reducing agent vacuum buffer tank, comprising a main tank and a vacuum tube fixedly installed on the top of the main tank, characterized in that: The bottom end of the vacuum tube is provided with an annular inlet, in which a filter screen is sealed and embedded, and the filter screen divides the vacuum tube into two parts, an upper part and an lower part.

2. A polycarboxylate water-reducing agent vacuum buffer tank according to claim 1, characterized in that: A filter sleeve is nested on the periphery of the filter screen, and there are two rings on the filter sleeve, and the two rings are distributed in an inverted 8 shape. One of the rings has a filter screen embedded in the vacuum tube from the annular inlet, and the other ring is placed outside the vacuum tube. A rotating shaft is fixedly connected between the two rings, and the rotating shaft is outside the vacuum tube. The positions of the two rings can be interchanged by rotating the rotating shaft 180°. A motor is fixedly connected to the end of the rotating shaft, and the side of the motor is fixedly connected to the outside of the vacuum tube.

3. A polycarboxylate water-reducing agent vacuum buffer tank according to claim 2, characterized in that: A sealing sleeve is arranged on the outer periphery of the filter sleeve.

4. A polycarboxylate water-reducing agent vacuum buffer tank according to claim 3, characterized in that: The upper end of the vacuum tube is connected with a branch tube, and the end of the branch tube away from the vacuum tube is threadedly connected with a pressure-type air nozzle.

5. A polycarboxylate water-reducing agent vacuum buffer tank according to claim 4, characterized in that: The branch pipe is a telescopic pipe.

6. A polycarboxylate water-reducing agent vacuum buffer tank according to claim 1, characterized in that: A vacuum sensor is provided on the top of the main tank.

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