PVC slurry pump

Abstract

The utility model belongs to the technical field of PVC production, and particularly relates to a PVC slurry pump which comprises an impeller assembly. An impeller liquid outlet is formed in the end part of the impeller assembly; an impeller liquid inlet is formed in the side wall of the impeller assembly; the side wall of the impeller assembly is rotationally connected with a driving motor; the end part of the driving motor is fixedly connected with a fixing frame; according to the present invention, the heating block is installed in front of the impeller liquid inlet, the PVC slurry enters the impeller assembly after passing through the heating block, and the PVC slurry is heated at the heating block through the heating pipe so as to increase the temperature of the PVC slurry and reduce the viscosity of the PVC slurry, such that the PVC slurry can enter the impeller assembly after being pumped to the impeller assembly, and the PVC slurry can enter the impeller assembly after being heated through the heating pipe; therefore, the flowability of the PVC slurry is improved, and the effect of not blocking the impeller assembly is achieved.

Description

Technical Field

[0001] This utility model belongs to the field of PVC production technology, specifically a PVC slurry pump. Background Technology

[0002] PVC slurry usually refers to a liquid mixture used in the production of PVC products. This slurry has a wide range of applications in textile coatings, artificial leather, floor coverings, wallpaper and other fields.

[0003] Currently, PVC slurry mainly consists of PVC resin powder, plasticizer, stabilizer, pigments, and other components, which are mixed through a specific process.

[0004] In the production of PVC products, the prepared raw materials, namely PVC slurry, need to be pumped to the processing area for processing. During pumping, the PVC slurry is generally pumped from the mixing workshop to the processing workshop over a certain distance. Due to the long pumping distance, the PVC slurry is no longer heated during pumping, which causes the temperature of the PVC slurry to drop and become thick. When it reaches the impeller assembly, it can cause the impeller assembly to become clogged. Therefore, a PVC slurry pump is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a PVC slurry pump.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A PVC slurry pump of this utility model includes an impeller assembly; an impeller outlet is provided at the end of the impeller assembly; an impeller inlet is provided on the side wall of the impeller assembly; a drive motor is rotatably connected to the side wall of the impeller assembly; a fixing frame is fixedly connected to the end of the drive motor; a connecting pipe is bolted to the side wall of the impeller inlet; a heating block is bolted to the side wall of the connecting pipe; an inlet pipe is bolted to the side wall of the heating block; multiple sets of heating holes are provided on the side wall of the heating block; heating pipes are installed on the inner side wall of the heating holes; and a temperature controller is fixedly connected to the side wall of the heating block.

[0007] Preferably, a fixing ring is detachably connected to the middle of the liquid inlet pipe; a gamma radiation source is fixedly connected to the side wall of the fixing ring; and a detector is fixedly connected to the side wall of the fixing ring.

[0008] Preferably, a maintenance tube is fixedly connected to the middle of the heating block; a maintenance hole is opened in the middle of the maintenance tube; and a sealing cap is bolted to the top of the maintenance tube.

[0009] Preferably, the sealing cover has a through hole in the middle; a transparent plate is fixed to the inner wall of the through hole; and a gasket is installed between the sealing cover and the inspection pipe.

[0010] Preferably, the heating block has a cavity in the middle; the cavity is located outside the heating hole.

[0011] Preferably, a sealing ring is installed between the connecting pipe and the heating block; a sealing ring is installed between the liquid inlet pipe and the heating block.

[0012] The beneficial effects of this utility model are:

[0013] 1. This utility model provides a PVC slurry pump. By installing a heating block in front of the impeller inlet, the PVC slurry enters the impeller assembly after passing through the heating block. At the heating block, the PVC slurry is heated by a heating pipe, thereby increasing the temperature of the PVC slurry, reducing the viscosity of the PVC slurry, thereby improving the fluidity of the PVC slurry and achieving the effect of not clogging the impeller assembly.

[0014] 2. This utility model provides a PVC slurry pump. A flow monitoring device is installed in the middle of the inlet pipe. A gamma radiation source emits gamma rays, which pass through the inlet pipe and are detected by a detector. The detector calculates the portion of the rays that are absorbed after passing through the slurry, and the remaining portion reaches the detector to measure its intensity, thus determining the PVC slurry concentration. The signal is then connected to a temperature controller. When the concentration is high, an electrical signal is emitted, thereby increasing the heating temperature of the heating block. By heating the PVC slurry, the concentration of the PVC slurry is reduced, increasing its fluidity. This allows the equipment to adjust the heating temperature in real time according to the PVC slurry concentration, thereby increasing the PVC slurry flow rate. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0016] Figure 1 This is a perspective view of the present invention;

[0017] Figure 2 This is a perspective view of the temperature controller in this utility model;

[0018] Figure 3 This is a cross-sectional view of the heating block in this utility model;

[0019] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0020] Figure 5 This is a diagram showing the location distribution of the heating elements in this utility model.

[0021] Legend:

[0022] 1. Fixing frame; 11. Drive motor; 12. Impeller assembly; 13. Impeller inlet; 14. Impeller outlet; 15. Connecting pipe; 16. Heating block; 17. Inlet pipe; 18. Heating tube; 19. Temperature controller; 2. Fixing ring; 21. Gamma radiation source; 22. Detector; 3. Inspection pipe; 31. Sealing cover; 32. Inspection hole; 4. Through hole; 41. Transparent plate; 5. Cavity; 6. Sealing ring. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Specific implementation examples are given below.

[0025] Please see Figures 1-5This utility model provides a PVC slurry pump, including an impeller assembly 12; an impeller outlet 14 is provided at the end of the impeller assembly 12; an impeller inlet 13 is provided on the side wall of the impeller assembly 12; a drive motor 11 is rotatably connected to the side wall of the impeller assembly 12; a fixing bracket 1 is fixedly connected to the end of the drive motor 11; a connecting pipe 15 is bolted to the side wall of the impeller inlet 13; a heating block 16 is bolted to the side wall of the connecting pipe 15; an inlet pipe 17 is bolted to the side wall of the heating block 16; multiple sets of heating holes are provided on the side wall of the heating block 16; heating pipes 18 are installed on the inner side wall of the heating holes; a temperature controller 19 is fixedly connected to the side wall of the heating block 16. During operation, PVC slurry, which usually refers to a liquid mixture used in the production of PVC products, is mainly composed of PVC resin powder, plasticizer, stabilizer, pigments, etc., and is mixed through a specific process. PVC slurry has wide applications in textile coatings, artificial leather, floor coverings, wallpaper, and other fields. In the production of PVC products, the prepared raw material, PVC slurry, needs to be pumped to the processing area. During pumping, the PVC slurry is typically pumped from the mixing workshop to the processing workshop over a certain distance. Due to this long pumping distance, the PVC slurry is not heated during pumping, causing its temperature to drop and it to thicken. This can lead to blockage of the impeller assembly 12 when pumped to it. By installing a heating block 16 before the impeller inlet 13, the PVC slurry enters the impeller assembly 12 after passing through the heating block 16. At the heating block 16, the PVC slurry is heated by the heating pipe 18, thereby increasing its temperature and reducing its viscosity. This improves the fluidity of the PVC slurry and prevents blockage of the impeller assembly 12.

[0026] Furthermore, such as Figures 1-5 As shown, a fixing ring 2 is detachably connected to the middle of the liquid inlet pipe 17; a gamma radiation source 21 is fixedly connected to the side wall of the fixing ring 2; a detector 22 is fixedly connected to the side wall of the fixing ring 2. During operation, the gamma radiation source 21 emits gamma rays through the flow monitoring device set in the middle of the liquid inlet pipe 17. The rays pass through the liquid inlet pipe 17 and are detected by the detector 22. Then, the part of the rays that pass through the slurry is absorbed, and the remaining part reaches the detector to measure its intensity, thereby measuring the concentration of the PVC liquid. Then, the signal is connected to the temperature controller 19. When the concentration is high, an electrical signal will be emitted, thereby increasing the heating temperature of the heating block 16. By heating the PVC liquid, the concentration of the PVC liquid is reduced, thereby increasing the fluidity of the PVC liquid. This allows the equipment to adjust the heating temperature of the equipment in real time according to the concentration of the PVC liquid, thereby increasing the flow rate of the PVC liquid.

[0027] Furthermore, such as Figures 1-5As shown, a maintenance tube 3 is fixedly connected to the middle of the heating block 16; a maintenance hole 32 is opened in the middle of the maintenance tube 3; a sealing cap 31 is bolted to the top of the maintenance tube 3. During operation, after the equipment has been running for a long time, the PVC liquid will adhere to the inner wall of the heating block 16, thereby reducing the flow rate of the PVC liquid. Through the maintenance tube 3, the operator can use a wrench to unscrew the bolts fixing the sealing cap 31, and then open the sealing cap 31 to clean the inside of the heating block 16, thereby reducing the adhesion of PVC liquid and increasing the flow rate of PVC liquid.

[0028] Furthermore, such as Figures 1-5 As shown, a through hole 4 is provided in the middle of the sealing cover 31; a transparent plate 41 is fixed to the inner wall of the through hole 4; a gasket is installed between the sealing cover 31 and the inspection pipe 3. During operation, when the staff performs equipment maintenance, they can visually observe the state of the PVC liquid inside the heating block 16 through the transparent plate 41 to understand the viscosity of the PVC liquid, so as to ensure that the PVC liquid passes through the equipment normally, and at the same time, problems can be detected in time.

[0029] Furthermore, such as Figures 1-5 As shown, the heating block 16 has a cavity 5 in the middle. The cavity 5 is located outside the heating hole. When the heating tube 18 heats the heating block 16 during operation, the heating tube 18 is wrapped inside the cavity 5 in the heating block 16, thus forming a vacuum zone. By preventing air flow, convection heat dissipation is reduced, thereby improving the heat preservation effect of the sealing ring 6, reducing heat loss, and thus improving the heating effect on the PVC liquid.

[0030] Furthermore, such as Figures 1-5 As shown, a sealing ring 6 is installed between the connecting pipe 15 and the heating block 16; a sealing ring 6 is installed between the liquid inlet pipe 17 and the heating block 16. During operation, the sealing ring 6 provided at the connection between the liquid inlet pipe 17 and the connecting pipe 15 and the heating block 16 effectively increases the sealing performance of the connection between the liquid inlet pipe 17 and the connecting pipe 15 and the heating block 16, reducing the leakage of PVC liquid from the connection.

[0031] Working Principle: PVC slurry, generally referring to a liquid mixture used in the production of PVC products, is mainly composed of PVC resin powder, plasticizers, stabilizers, pigments, and other components, mixed through a specific process. This slurry has wide applications in textile coatings, artificial leather, flooring, wallpaper, and other fields. In PVC product production, the prepared raw material, i.e., the PVC slurry, needs to be pumped to the processing area for processing. During pumping, the PVC slurry is typically pumped from the mixing workshop to the processing workshop over a certain distance. Due to the long pumping distance, the PVC slurry is not heated during pumping, causing its temperature to drop and it to thicken. When it reaches the impeller assembly 12, it causes the impeller assembly 1... 2. To prevent clogging, a heating block 16 is installed before the impeller inlet 13. The PVC slurry enters the impeller assembly 12 after passing through the heating block 16. At the heating block 16, the PVC slurry is heated by the heating pipe 18, thereby increasing its temperature and reducing its viscosity, thus improving its fluidity and preventing clogging of the impeller assembly 12. A flow monitoring device is installed in the middle of the inlet pipe 17. A gamma radiation source 21 emits gamma rays, which pass through the inlet pipe 17 and are detected by the detector 22. The detector calculates the portion of the rays that are absorbed after passing through the slurry, and the remaining portion reaches the detector to measure its intensity, thus determining the PVC slurry concentration. This concentration is then connected to the temperature controller 19. When the concentration is high... It emits an electrical signal to increase the heating temperature of the heating block 16. By heating the PVC liquid, the concentration of the PVC liquid is reduced, thereby increasing its fluidity. This allows the equipment to adjust the heating temperature in real time based on the concentration of the PVC liquid, thus increasing the flow rate of the PVC liquid. After prolonged operation, the PVC liquid will adhere to the inner wall of the heating block 16, further reducing the flow rate. Through the inspection pipe 3, workers can use a wrench to loosen the bolts securing the sealing cover 31, and then open the sealing cover 31 to clean the inside of the heating block 16, thereby reducing the adhesion of PVC liquid and increasing the flow rate of the PVC liquid. During equipment maintenance, workers can access the inspection pipe 3 through the inspection pipe 3. The exposed panel 41 allows for direct observation of the state of the PVC liquid inside the heating block 16, enabling assessment of its consistency and ensuring its proper flow through the equipment. It also allows for timely detection of any issues. When the heating tube 18 heats the heating block 16, the cavity 5 within the heating block 16 encloses the tube, creating a vacuum zone. This prevents airflow, reducing convective heat loss and enhancing the insulation effect of the sealing ring 6, thus improving the heating efficiency of the PVC liquid. The sealing ring 6 at the connection points of the inlet pipe 17 and connecting pipe 15 with the heating block 16 effectively increases the sealing performance of these connections.Reduce PVC molten material leakage from joints.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A PVC slurry pump comprising an impeller assembly (12); characterized by: The impeller assembly (12) end is provided with an impeller liquid outlet (14); the impeller assembly (12) side wall is provided with an impeller liquid inlet (13); the impeller assembly (12) side wall is rotatably connected with a driving motor (11); the driving motor (11) end is fixedly connected with a fixed frame (1); the impeller liquid inlet (13) side wall is bolted with a connecting pipe (15); the connecting pipe (15) side wall is bolted with a heating block (16); the heating block (16) side wall is bolted with a liquid inlet pipe (17); the heating block (16) side wall is provided with a plurality of heating holes; the heating hole inner wall is provided with a heating pipe (18); the heating block (16) side wall is fixedly connected with a temperature controller (19).

2. A PVC slurry pump as claimed in claim 1, wherein: The liquid inlet pipe (17) middle part is detachably connected with a fixed ring (2); the fixed ring (2) side wall is fixedly connected with a gamma radiation source (21); the fixed ring (2) side wall is fixedly connected with a detector (22).

3. A PVC slurry pump as claimed in claim 1, wherein: The heating block (16) middle part is fixedly connected with an overhaul pipe (3); the overhaul pipe (3) middle part is provided with an overhaul hole (32); the overhaul pipe (3) top is bolted with a sealing cover (31).

4. A PVC slurry pump as claimed in claim 3, wherein: The sealing cover (31) middle part is provided with a through hole (4); the through hole (4) inner wall is fixedly connected with a transparent plate (41); the sealing cover (31) and the overhaul pipe (3) are provided with a gasket.

5. The PVC slurry pump of claim 1, wherein: The heating block (16) middle part is provided with a cavity (5); the cavity (5) is located outside the heating hole.

6. A PVC slurry pump as claimed in claim 1, wherein: The connecting pipe (15) and the heating block (16) are provided with a sealing ring (6); the liquid inlet pipe (17) and the heating block (16) are provided with a sealing ring (6).

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