Plug valve suitable for end discharging spiral feeding equipment

Abstract

The utility model provides a plug valve suitable for end discharge spiral feeding equipment, which comprises a casing, the casing is of a cross-shaped structure, a material outlet is arranged at the lower end of the casing, and an equipment connector, a first connector and a second connector are sequentially arranged on the casing in the clockwise direction of the material outlet. The first connecting port is arranged opposite to the material outlet, the second connecting port is arranged opposite to the equipment connecting port, a scraper assembly is fixedly arranged on the first connecting port, and a moisture insulation assembly is fixedly arranged on the second connecting port. And the service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of powder material feeding equipment, and particularly relates to a plug valve applicable to an end-discharging screw feeding equipment. Background Art

[0002] In industrial production, screw feeding equipment is often used to feed powder materials. However, due to the moisture-absorbing characteristics of some powder materials, when the screw feeding equipment is in a stopped state, the powder materials near the discharging port of the feeding equipment are likely to agglomerate after contacting the moisture in the air, and thus adhere to the discharging port of the screw feeding equipment, the screw blades and the conveying pipeline. Over time, these agglomerates and adhesions will gradually accumulate, resulting in the narrowing or even complete blockage of the channel of the screw feeding equipment, thereby affecting the metering accuracy of the powder material feeding. In addition, the agglomerated and adhered materials after moisture absorption will also increase the friction between the screw blades and the casing, thereby accelerating the wear of the equipment. Summary of the Invention

[0003] The problem to be solved by the utility model is to provide a plug valve applicable to an end-discharging screw feeding equipment, which has a simple structure, can effectively block the intrusion of humid air into the powder material, and prolong the service life of the equipment.

[0004] To solve the above technical problems, the technical solution adopted by the utility model is: a plug valve applicable to an end-discharging screw feeding equipment, comprising a casing, the casing is in a "cross" shape structure, a material outlet is arranged at the lower end of the casing, a device connection port, a first connection port and a second connection port are sequentially arranged on the casing in the clockwise direction at the material outlet, the first connection port is arranged opposite to the material outlet, the second connection port is arranged opposite to the device connection port, a scraper assembly is fixedly arranged on the first connection port, and a moisture isolation assembly is fixedly arranged on the second connection port.

[0005] Further, the scraper assembly includes a scraper driving cylinder, a first flange plate fixedly arranged on the scraper driving cylinder, and a scraper fixedly arranged at the telescopic end of the scraper driving cylinder. A second flange plate matching with the first flange plate is arranged on the first connection port, and the scraper assembly is fixedly arranged on the first connection port through the first flange plate and the second flange plate.

[0006] Further, the scraper includes a connection part fixedly connected to the telescopic end of the scraper driving cylinder and a cleaning part vertically arranged at one end of the connection part. The cleaning part is located on the side close to the device connection port and is arranged in a fitting manner with the inner wall of the casing.

[0007] Further, an inclined surface is arranged at the lower end of the cleaning part, and the inclined surface is inclined upward from the inner wall of the casing.

[0008] Further, the moisture isolation component includes a moisture isolation driving cylinder, a third flange plate fixedly arranged on the moisture isolation driving cylinder, and a moisture isolation baffle fixedly arranged at the telescopic end of the moisture isolation driving cylinder. A fourth flange plate matching the third flange plate is arranged on the second connection port, and the moisture isolation component is fixedly arranged on the second connection port through the third flange plate and the fourth flange plate.

[0009] Further, guide strips slidably connected to the moisture isolation baffle are arranged on the inner wall of the casing.

[0010] Further, the moisture isolation baffle is made of polytetrafluoroethylene, and a water-repellent coating is arranged on the moisture isolation baffle.

[0011] Further, a fifth flange plate is arranged on the equipment connection port, and the equipment connection port is flange-connected to the discharge end of the dosing equipment through the fifth flange plate.

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

[0013] The plug valve of the present utility model is connected to the discharge end of the dosing equipment through the equipment connection port, and then the material enters the casing of the plug valve and is discharged at the material outlet. When the dosing equipment stops, in order to prevent the powder material at the discharge port of the equipment from contacting the moisture in the air and causing caking and adhesion, after shutdown, the scraping plate component is controlled to scrape the material at the discharge port, and then the moisture isolation component is controlled to seal the discharge port, effectively preventing the material at the port of the dosing equipment from contacting the air. The structure of the present utility model is simple, effectively blocks the intrusion of humid air into the powder material, and prolongs the service life of the equipment. Description of the Drawings

[0014] Figure 1 is a schematic structural diagram of a plug valve of the present utility model applicable to a screw dosing equipment with end discharge.

[0015] Figure 2 is Figure 1 the internal structural diagram of

[0016] Figure 3 is a schematic structural diagram of the scraping plate component of a plug valve of the present utility model applicable to a screw dosing equipment with end discharge.

[0017] Figure 4 is a schematic structural diagram of the moisture isolation component of a plug valve of the present utility model applicable to a screw dosing equipment with end discharge.

[0018] Figure 5 is a schematic installation structure diagram of a plug valve of the present utility model applicable to a screw dosing equipment with end discharge and the discharge end of the dosing equipment.

[0019] Figure 6It is a schematic structural state diagram of the plug valve for a feeding screw feeding device of the utility model when scraping materials.

[0020] Figure 7 It is a schematic structural diagram of the final state of the plug valve for a feeding screw feeding device of the utility model.

[0021] In the figure: 1 - housing; 2 - material outlet; 3 - equipment connection port; 4 - first connection port; 5 - second connection port; 6 - scraper assembly; 7 - moisture isolation assembly; 8 - second flange plate; 9 - fourth flange plate; 10 - guide strip; 11 - fifth flange plate; 12 - discharging end of the feeding equipment; 601 - scraper driving cylinder; 602 - first flange plate; 603 - scraper; 6031 - connection part; 6032 - cleaning part; 6033 - inclined surface; 701 - moisture isolation driving cylinder; 702 - third flange plate; 703 - moisture isolation baffle. Specific embodiments

[0022] The following will describe in detail the specific embodiments of the utility model with reference to the accompanying drawings.

[0023] As Figures 1-7 shown, a plug valve applicable to a feeding screw feeding device with end discharge includes a housing 1. The housing 1 has a "cross" - shaped structure. A material outlet 2 is provided at the lower end of the housing 1. An equipment connection port 3, a first connection port 4, and a second connection port 5 are sequentially arranged in the clockwise direction at the material outlet 2 of the housing 1. The first connection port 4 is arranged opposite to the material outlet 2, and the second connection port 5 is arranged opposite to the equipment connection port 3. A scraper assembly 6 is fixedly arranged on the first connection port 4, and a moisture isolation assembly 7 is fixedly arranged on the second connection port 5.

[0024] Specifically, the plug valve of the utility model is connected to the discharging end 12 of the feeding equipment through the equipment connection port 3. After the material enters the housing 1 of the plug valve, it is discharged at the material outlet 2. When the feeding equipment stops running, to prevent the powder material at the discharging port of the equipment from contacting the moisture in the air and causing caking and adhesion, after the equipment stops, the scraper assembly 6 is controlled to scrape the material at the discharging port. Since the first connection port 4 is arranged opposite to the material outlet 2, it is convenient for the scraped material to be discharged at the material outlet 2. Then, the moisture isolation assembly 7 is controlled to seal the discharging port. Since the second connection port 5 is arranged opposite to the equipment connection port 3, it is convenient for the moisture isolation assembly 7 to perform the sealing operation, effectively preventing the material at the feeding equipment port from contacting the air. The structure of the utility model is simple, effectively blocks the intrusion of humid air into the powder material, and prolongs the service life of the equipment.

[0025] Further, the scraper assembly 6 includes a scraper driving cylinder 601, a first flange plate 602 fixedly arranged on the scraper driving cylinder 601, and a scraper 603 fixedly arranged at the telescopic end of the scraper driving cylinder 601. A second flange plate 8 matching the first flange plate 602 is arranged on the first connection port 4, and the scraper assembly 6 is fixedly arranged on the first connection port 4 through the first flange plate 602 and the second flange plate 8.

[0026] Further, the scraper 603 includes a connecting portion 6031 fixedly connected to the telescopic end of the scraper driving cylinder 601 and a cleaning portion 6032 vertically arranged at one end of the connecting portion 6031. The cleaning portion 6032 is located on the side close to the equipment connection port 3 and is arranged in contact with the inner wall of the machine shell 1.

[0027] Specifically, the scraper driving cylinder 601 is flange-connected to the second flange plate 8 on the first connection port 4 through the first flange plate 602 and is fixedly arranged on the first connection port 4. The position of the scraper 603 inside the machine shell 1 is controlled by controlling the expansion and contraction of the telescopic end of the scraper driving cylinder 601. At the same time, the connecting portion 6031 of the scraper 603 is connected to the telescopic end of the cylinder, and the cleaning portion 6032 is arranged in contact with the inner wall of the machine shell 1 on one side of the equipment connection port 3. Since the powder material is discharged from the discharge port at the equipment connection port 3 through the transportation of the feeding equipment, when the equipment stops and it is necessary to scrape the material at the discharge port, the telescopic end can be extended by controlling the scraper driving cylinder 601, and the cleaning portion 6032 scrapes the material on the inner wall of the machine shell 1 around the discharge port. Then, the scraper driving cylinder 601 is started again, and the telescopic end is retracted to the initial position, that is, a scraping action is completed.

[0028] Further, an inclined surface 6033 is arranged at the lower end of the cleaning portion 6032. The inclined surface 6033 is inclined outward and upward from the inner wall of the machine shell 1, which can make the cleaning of the material on the inner wall of the machine shell 1 by the cleaning portion more clean and thorough, achieving a better scraping effect.

[0029] Further, the moisture isolation assembly 7 includes a moisture isolation driving cylinder 701, a third flange plate 702 fixedly arranged on the moisture isolation driving cylinder 701, and a moisture isolation baffle 703 fixedly arranged at the telescopic end of the moisture isolation driving cylinder 701. A fourth flange plate 9 matching the third flange plate 702 is arranged on the second connection port 5, and the moisture isolation assembly 7 is fixedly arranged on the second connection port 5 through the third flange plate 702 and the fourth flange plate 9.

[0030] Specifically, the moisture isolation driving cylinder 701 is flange-connected to the fourth flange plate 9 on the second connection port 5 through the third flange plate 702 and is fixedly arranged on the second connection port 5. After the scraping assembly 6 completes the scraping action, the telescopic end is driven to extend by the moisture isolation driving cylinder 701, driving the moisture isolation baffle 703 to block the discharge port at the equipment connection port 3, effectively blocking the contact between the powder material and air and preventing the powder material from getting damp and caking.

[0031] Furthermore, guide strips 10 slidably connected to the moisture isolation baffle 703 are arranged on the inner wall of the casing 1. By setting the guide strips 10 to be slidably connected to the moisture isolation baffle 703, it can play a good guiding role for the moisture isolation baffle 703 and make the equipment operate more stably. Among them, the sliding structure between the two can be that the moisture isolation baffle is provided with a chute matching the guide strip, and through the cooperation of the chute and the guide strip, it provides a guiding effect for the moisture isolation baffle, or other structures that can realize the sliding connection between the two are also acceptable.

[0032] Furthermore, the moisture isolation baffle 703 is made of polytetrafluoroethylene, and a hydrophobic coating is arranged on the moisture isolation baffle 703. The moisture isolation baffle 703 made of polytetrafluoroethylene has good characteristics such as acid and alkali resistance and corrosion resistance, improving the service life of the equipment. At the same time, setting the hydrophobic coating can effectively prevent the powder material from adhering.

[0033] Furthermore, a fifth flange plate 11 is arranged on the equipment connection port ”, and the equipment connection port 3 is flange-connected to the discharge end 12 of the dosing equipment through the fifth flange plate 11.

[0034] The working process of the present utility model is as follows: As Figure 5 shown, the equipment connection port 3 is flange-connected to the discharge end 12 of the dosing equipment, the equipment is in an operating state, and the plug valve is in an initial state. When the equipment stops running and it is necessary to scrape the material at the discharge port, as Figure 6 shown, the telescopic end is controlled to extend by the scraping driving cylinder 601, and the cleaning part 6032 scrapes the material on the inner wall of the casing 1 around the discharge port. After scraping, as Figure 7 shown, the scraping driving cylinder 601 is controlled again to retract the telescopic end to the initial position, and then the telescopic end of the moisture isolation driving cylinder 701 is controlled to extend, and the discharge port at the equipment connection port 3 is blocked by the moisture isolation baffle 703, effectively blocking the contact between the powder material and air and preventing the powder material from getting damp and caking. At this time, the plug valve is in the final working state. When it is necessary to start the dosing equipment again to transport the material, the telescopic end of the moisture isolation driving cylinder 701 is controlled to retract, and at this time the plug valve returns to the initial state.

[0035] The above has described in detail an embodiment of the present utility model, but the above content is only a preferred embodiment of the present utility model and cannot be considered as limiting the scope of implementation of the present utility model. All equivalent changes and improvements made according to the scope of application of the present utility model shall still fall within the scope covered by the patent of the present utility model.

Claims

1. A plug valve applicable to an end-discharge screw feeding device, characterized in that: It includes a casing. The casing is in a "cross" shape structure. A material outlet is arranged at the lower end of the casing. On the casing, in the clockwise direction at the material outlet, an equipment connection port, a first connection port, and a second connection port are sequentially arranged. The first connection port is arranged opposite to the material outlet, and the second connection port is arranged opposite to the equipment connection port. A scraper assembly is fixedly arranged on the first connection port, and a moisture isolation assembly is fixedly arranged on the second connection port.

2. The plug valve applicable to the end-discharging screw feeding device according to claim 1, wherein: The scraper assembly includes a scraper driving cylinder, a first flange plate fixedly arranged on the scraper driving cylinder, and a scraper fixedly arranged on the telescopic end of the scraper driving cylinder. A second flange plate matching the first flange plate is arranged on the first connection port. The scraper assembly is fixedly arranged on the first connection port through the first flange plate and the second flange plate.

3. The plug valve applicable to the end-discharging screw feeding device according to claim 2, wherein: The scraper includes a connection part fixedly connected to the telescopic end of the scraper driving cylinder and a cleaning part vertically arranged at one end of the connection part. The cleaning part is located on the side close to the equipment connection port and is arranged in contact with the inner wall of the casing.

4. The plug valve applicable to the end-discharging screw feeding device according to claim 3, characterized in that: An inclined surface is arranged at the lower end of the cleaning part. The inclined surface is inclined outward and upward from the inner wall of the casing.

5. The plug valve applicable to the end-discharging screw feeding device according to claim 1, characterized in that: The moisture isolation assembly includes a moisture isolation driving cylinder, a third flange plate fixedly arranged on the moisture isolation driving cylinder, and a moisture isolation baffle fixedly arranged on the telescopic end of the moisture isolation driving cylinder. A fourth flange plate matching the third flange plate is arranged on the second connection port. The moisture isolation assembly is fixedly arranged on the second connection port through the third flange plate and the fourth flange plate.

6. The plug valve applicable to the end-discharging screw feeding device according to claim 5, characterized in that: Guide strips slidably connected to the moisture isolation baffle are arranged on the inner wall of the casing.

7. The plug valve applicable to the end-discharging screw feeding device according to claim 5, characterized in that: The moisture isolation baffle is made of polytetrafluoroethylene material, and a water-repellent coating is arranged on the moisture isolation baffle.

8. The plug valve applicable to the end-discharging screw feeding device according to claim 1, wherein: A fifth flange plate is arranged on the equipment connection port. The equipment connection port is flange-connected to the discharge end of the dosing equipment through the fifth flange plate.

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