Built-in clamping stagnation prevention discharge valve based on viscous materials
By incorporating a groove structure at the critical shearing point of the discharge valve, the problem of clumping of viscous materials is solved, enabling the discharge valve to operate normally and be easily cleaned.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU TONGDELI TECHNOLOGY CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-04-28
AI Technical Summary
Existing discharge valves are prone to clumping when handling viscous materials, resulting in poor discharge and difficulty in cleaning.
A built-in anti-jamming discharge valve is designed by setting an upper groove between the bottom edge of the feed chamber and the upper edge of the impeller chamber, and a lower groove between the top edge of the discharge chamber and the lower edge of the impeller chamber, to prevent the impeller from shearing the material at these positions and prevent it from sticking together.
It effectively prevents materials from sticking at the shearing point, ensuring the normal use of the discharge valve and smooth discharge, and simplifies the cleaning process.
Smart Images
Figure CN224172007U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of unloading valve technology, and in particular to a built-in anti-jamming unloading valve for viscous materials. Background Technology
[0002] Currently, in dust removal systems and pneumatic conveying systems, materials are mostly discharged using ash discharge valves. Conventional discharge valves are no longer a problem for discharging dry dust, but for viscous dust with high humidity, existing discharge valves cannot achieve normal discharge. Viscous materials enter the feed chamber of the discharge valve through the feed pipe and follow the impeller to the discharge chamber. When the impeller rotates to the point where the lower edge of the feed chamber meets the upper edge of the impeller chamber, the impeller will generate a shearing effect on the material. Similarly, when the impeller rotates to the point where the upper edge of the discharge chamber meets the lower edge of the impeller chamber, some material will still be sheared by the impeller.
[0003] When viscous materials are discharged through the discharge valve, they will stick together at the shearing point mentioned above. Over time, this will form clumps, affecting the normal rotation of the impeller and causing the discharge valve to discharge material unevenly. Moreover, cleaning these clumps is quite troublesome. Utility Model Content
[0004] The technical problem to be solved by this utility model is: in order to overcome the shortcomings of the prior art, this utility model provides a built-in anti-jamming unloading valve for viscous materials that can effectively prevent the formation of agglomeration.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a built-in anti-jamming unloading valve for viscous materials, including a valve body, wherein the valve body has a feeding chamber, an impeller chamber and a discharge chamber, wherein an impeller for pushing materials into the discharge chamber is rotatably installed in the impeller chamber, wherein an upper groove extending towards the inner wall of the impeller chamber is formed at the junction between the bottom edge of the feeding chamber and the upper edge of the impeller chamber, and a lower groove extending towards the inner wall of the impeller chamber is formed at the junction between the top edge of the discharge chamber and the lower edge of the impeller chamber, wherein the upper groove is located at the shearing point on the side where the impeller pushes the material into the impeller chamber, and the lower groove is arranged diagonally relative to the upper groove in the impeller chamber.
[0006] The upper cross-section of the feed chamber is circular, and the lower cross-section of the feed chamber connected to the impeller chamber is waist-shaped; the upper cross-section of the discharge chamber connected to the impeller chamber is waist-shaped, and the lower cross-section of the discharge chamber is circular.
[0007] The two ends of the upper groove are each connected to the arc-shaped starting point of the waist-shaped cross-section at the lower end of the feed chamber; the two ends of the lower groove are each connected to the arc-shaped starting point of the waist-shaped cross-section at the upper end of the discharge chamber.
[0008] The valve body has an upper connecting flange on its upper end face and a lower connecting flange on its lower end face.
[0009] The beneficial effects of this utility model are as follows: By setting an upper groove at the shearing point at the bottom edge of the feeding chamber and a lower groove at the shearing point at the top edge of the discharging chamber, the impeller cannot shear the material at the locations of the upper and lower grooves. This effectively prevents the material from sticking together at the shearing points and ensures the normal operation of the discharge valve. Attached Figure Description
[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0011] Figure 1 This is a three-dimensional structural schematic diagram of the present invention.
[0012] Figure 2 This is a schematic diagram of the main structure of this utility model.
[0013] Figure 3 yes Figure 2 Schematic diagram of the cross-sectional structure in the middle BB direction.
[0014] Figure 4 This is one of the cross-sectional views of the valve body described in this utility model.
[0015] Figure 5 This is the second sectional view of the valve body described in this utility model.
[0016] In the diagram: 1. Valve body, 2. Feed chamber, 3. Impeller chamber, 4. Discharge chamber, 5. Impeller, 6. Upper groove, 7. Lower groove, 8. Upper connecting flange, 9. Lower connecting flange, 10. Support seat, 11. Bearing seat, 12. Impeller shaft. Detailed Implementation
[0017] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0018] like Figures 1-3 The illustrated built-in anti-jamming discharge valve for viscous materials includes a valve body 1. The upper end face of the valve body 1 has an upper connecting flange 8 for connecting to the feed pipe, and the lower end face of the valve body 1 has a lower connecting flange 9 for connecting to the discharge pipe.
[0019] The valve body 1 contains, from top to bottom, a feed chamber 2, an impeller chamber 3, and a discharge chamber 4. Each end of the valve body 1 has a support seat 10, within which a bearing seat 11 is installed. An impeller shaft 12 is rotatably supported between the bearing seats 11, and an impeller 5 is mounted on the impeller shaft 12. The impeller 5 is located within the impeller chamber 3, and is clearance-fitted to the inner wall of the impeller chamber 3. As the impeller 5 rotates clockwise, the material entering the feed chamber 2 is propelled into the discharge chamber 3 by the impeller 5.
[0020] The upper cross-section of the feed chamber 2 is circular, and the lower cross-section of the feed chamber 2 connected to the impeller chamber 3 is waist-shaped. The inner surface of the feed chamber 2 forms a curved surface from top to bottom that connects the upper circular cross-section and the lower waist-shaped cross-section. The upper cross-section of the discharge chamber 4 connected to the impeller chamber 3 is waist-shaped, and the lower cross-section of the discharge chamber 4 is circular. The inner surface of the impeller chamber 3 forms a curved surface from top to bottom that connects the upper waist-shaped cross-section and the lower circular cross-section.
[0021] See Figure 4 , Figure 5 An upper groove 6 extending into the inner wall of the impeller cavity 2 is provided at the junction between the bottom edge of the feed chamber 2 and the upper edge of the impeller cavity 2. The two ends of the upper groove 6 are respectively connected to the arc-shaped starting point of the waist-shaped cross section at the lower end of the feed chamber 2. The upper groove 6 is located at the shearing point on the side where the impeller 5 pushes the material into the impeller cavity 3.
[0022] A lower groove 7 extending into the inner wall of the impeller cavity 3 is provided at the junction between the top edge of the discharge cavity 4 and the lower edge of the impeller cavity 3. The two ends of the lower groove 7 are respectively connected to the arc-shaped starting point of the waist-shaped cross section at the upper end of the discharge cavity 4. The lower groove 7 is arranged diagonally relative to the upper groove 6 in the impeller cavity 3.
[0023] The above Figure 4 This is a left view obtained by sectioning along the axis of the discharge valve, showing the position of the upper groove 6. Figure 5 This is a right-hand view obtained by sectionalizing along the axis of the discharge valve, showing the position of the lower groove 7.
[0024] Because an upper groove 6 is provided at the shearing point at the bottom edge of the feed chamber 2, and a lower groove 7 is provided at the shearing point at the top edge of the discharge chamber 4, the impeller 5 cannot shear the material at the locations of the upper groove 6 and the lower groove 7. This effectively prevents the material from sticking together at the shearing points and ensures the normal operation of the discharge valve.
[0025] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A built-in anti-jamming discharge valve for viscous materials, comprising a valve body (1), wherein the valve body (1) has a feed chamber (2), an impeller chamber (3) and a discharge chamber (4), wherein an impeller (5) for pushing materials into the discharge chamber (4) is rotatably installed in the impeller chamber (3), characterized in that: An upper groove (6) extending into the inner wall of the impeller cavity (3) is provided at the junction between the bottom edge of the feed chamber (2) and the upper edge of the impeller cavity (3). A lower groove (7) extending into the inner wall of the impeller cavity (3) is provided at the junction between the top edge of the discharge chamber (4) and the lower edge of the impeller cavity (3). The upper groove (6) is located at the shearing point on the side where the impeller (5) pushes the material into the impeller cavity (3). The lower groove (7) is arranged diagonally relative to the upper groove (6) in the impeller cavity (3).
2. The built-in anti-jamming unloading valve based on viscous materials as described in claim 1, characterized in that: The upper cross-section of the feed chamber (2) is circular, and the lower cross-section of the feed chamber (2) connected to the impeller chamber (3) is waist-shaped; the upper cross-section of the discharge chamber (4) connected to the impeller chamber (3) is waist-shaped, and the lower cross-section of the discharge chamber (4) is circular.
3. The built-in anti-jamming unloading valve based on viscous materials as described in claim 2, characterized in that: The two ends of the upper groove (6) are each connected to the arc-shaped starting point of the waist-shaped cross section at the lower end of the feed chamber (2); the two ends of the lower groove (7) are each connected to the arc-shaped starting point of the waist-shaped cross section at the upper end of the discharge chamber (4).
4. The built-in anti-jamming unloading valve based on viscous materials as described in claim 1, characterized in that: The valve body (1) has an upper connecting flange (8) on its upper end face and a lower connecting flange (9) on its lower end face.