Pressure-resistant anti-jamming and anti-blocking rotary valve

Abstract

The present application belongs to the technical field of rotary valve, and particularly relates to a pressure-resistant anti-jamming and anti-blocking rotary valve, which comprises a valve body with a valve cavity, a impeller assembly is rotatably installed in the valve cavity, the impeller assembly is formed with a first hopper, a second hopper and an intermediate hopper, the first hopper and the second hopper are both arranged in an inclined manner along the axis direction of the impeller assembly, and the feed inlet is provided with a shunt plate for shielding the intermediate hopper and shunting the material to the first hopper and the second hopper. The intermediate hopper is covered by the shunt plate to prevent the material from directly entering the intermediate hopper from the feed inlet, and the intermediate hopper is used as a transition container to receive the material from the first hopper and the second hopper, so that the material in the first hopper and the second hopper can enter the intermediate hopper at the moment of rotation of the impeller assembly, and then the remaining material in the first hopper and the second hopper is loosened, the impeller assembly can be smoothly rotated to feed, and a high-power motor does not need to be replaced, thereby saving cost.

Description

Technical Field

[0001] This invention belongs to the field of rotary valve technology, specifically relating to a pressure-resistant, anti-jamming, and anti-clogging rotary valve. Background Technology

[0002] When conveying plastic particles with a particle size of 0.5mm-6mm, rotary valves often use intermittent feeding, which means that the feeding is not continuous and there is a pause between two feedings. During this pause, plastic particles continuously enter the hopper between the two blades from the feed inlet. After accumulating in the hopper, the plastic particles are gradually compacted and form a state that is not easy to flow. When feeding is needed again, the motor cannot drive the blades to rotate when it starts, resulting in feeding failure. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: In order to solve the problem in the prior art where, during the pause time of the inter-rotary feeding of the rotary valve, plastic particles continuously enter the hopper between the two blades from the feed port, and the plastic particles accumulate and are gradually compacted in the hopper, forming a state that is not easy to flow, and when feeding is required again, the motor cannot drive the blades to rotate, resulting in feeding failure. The present invention provides a pressure-resistant anti-jamming and anti-blocking rotary valve.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a pressure-resistant anti-jamming and anti-blocking rotary valve, including a valve body with a valve cavity, one end of the valve cavity being a feed inlet and the other end being a discharge outlet, an impeller assembly being rotatably installed in the valve cavity, the impeller assembly forming a first hopper, a second hopper spaced apart from the first hopper, and an intermediate hopper located between the first hopper and the second hopper to receive material from the first hopper and the second hopper at the moment the rotary valve rotates, and the first hopper and the second hopper are both inclined along the axis of the impeller assembly, the feed inlet being provided with a diverter plate for blocking the intermediate hopper and diverting the material to the first hopper and the second hopper.

[0005] Furthermore, a first opening is provided between the first hopper and the intermediate hopper to connect the two, and a second opening is provided between the second hopper and the intermediate hopper to connect the two, and both the first opening and the second opening are located on the side away from the impeller assembly shaft.

[0006] Furthermore, the impeller assembly includes a plurality of spaced-apart first blades and a plurality of spaced-apart second blades, with a first hopper formed between two adjacent first blades and a second hopper formed between two adjacent second blades.

[0007] Furthermore, the intermediate hopper has several components, and the impeller assembly also includes several spaced intermediate blades. The intermediate hopper is formed between two adjacent intermediate blades, and the several first hoppers, several intermediate hoppers, and several second hoppers correspond one-to-one.

[0008] Furthermore, a first partition plate is provided between the first hopper and the intermediate hopper, and a number of notches are spaced apart on the first partition plate along the circumference, with a number of first hoppers, first notches and intermediate hoppers corresponding one to one;

[0009] A second partition plate is provided between the second hopper and the intermediate hopper, and a number of second openings are arranged circumferentially on the second partition plate, with a number of second hoppers, second openings and intermediate hoppers corresponding one to one.

[0010] Furthermore, the first hopper and the second hopper are symmetrically arranged along the center line of the impeller assembly, and the cross-sectional area of ​​the intermediate hopper is smaller than that of the first hopper.

[0011] Furthermore, the first notch is correspondingly located in the middle of the intermediate hopper and the end of the first hopper, and the second notch is correspondingly located in the middle of the intermediate hopper and the end of the second hopper.

[0012] Furthermore, the diverter plate is formed with a first guide surface symmetrically arranged for guiding material into the first hopper and a second guide surface for guiding material into the second hopper.

[0013] Furthermore, the diverter plate is provided with a baffle at the upstream and downstream positions of the impeller assembly rotation direction. The baffle is used to prevent material entering from the feed port from falling directly between the end of the first blade and the valve cavity wall, and to prevent material entering from the feed port from falling directly between the end of the second blade and the valve cavity wall.

[0014] Furthermore, one end of the baffle is fixed to the valve cavity as a fixed end, and the cross-sectional area of ​​the baffle gradually decreases in the direction away from the fixed end.

[0015] The beneficial effects of this invention are as follows: This invention utilizes a diversion plate to cover the intermediate hopper to prevent materials from directly entering it from the feed inlet, and uses the intermediate hopper as a transition container to receive materials from the first and second hoppers. This allows the materials in the first and second hoppers to enter the intermediate hopper at the moment the impeller assembly rotates, thereby loosening the remaining materials in the first and second hoppers. This allows the impeller assembly to rotate smoothly for feeding, eliminating the need to replace the high-power motor and saving costs. Furthermore, the first and second hoppers, which are inclined along the axis of the impeller assembly, give the materials inside them a tendency to flow, making it easier for them to flow into the intermediate hopper.

[0016] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a top view of the present invention;

[0020] Figure 3 yes Figure 2 A cross-sectional view along the AA direction;

[0021] Figure 4 yes Figure 2 Cross-sectional view along the BB direction;

[0022] Figure 5 This is a three-dimensional structural diagram of the impeller assembly in this invention;

[0023] Figure 6 This is a top view of the impeller assembly in this invention;

[0024] Figure 7 This is a three-dimensional structural diagram of the valve body from a first-view perspective in this invention;

[0025] Figure 8 This is a three-dimensional structural diagram of the valve body from a second perspective in this invention;

[0026] In the picture:

[0027] 1. Valve body; 101. Valve chamber; 102. Inlet; 103. Outlet;

[0028] 2. Impeller assembly; 201. First hopper; 202. Second hopper; 203. Intermediate hopper; 204. First notch; 205. Second notch; 206. First blade; 207. Second blade; 208. Intermediate blade; 209. First partition plate; 210. Second partition plate; 211. Axle;

[0029] 3. Diverter plate; 301. First guide surface; 302. Second guide surface; 303. Material stop; 3031. Fixed end. Detailed Implementation

[0030] The 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 invention in a schematic manner. Therefore, they only show the components relevant to the invention. Orientations and references (e.g., up, down, left, right, etc.) are only used to aid in the description of the features in the drawings. Therefore, the following specific embodiments are not intended to be restrictive, and the scope of the claimed subject matter is defined solely by the appended claims and their equivalents.

[0031] like Figures 1-4As shown, a pressure-resistant anti-jamming and anti-clogging rotary valve includes a valve body 1 with a valve cavity 101. One end of the valve cavity 101 is a feed inlet 102, and the other end is a discharge outlet 103. Both the feed inlet 102 and the discharge outlet 103 are conical structures. The feed inlet 102 is larger at the top and smaller at the bottom, and the discharge outlet 103 is smaller at the top and larger at the bottom. The material enters the valve cavity 101 from the feed inlet 102 and is discharged from the discharge outlet 103 from the valve cavity 101.

[0032] An impeller assembly 2 is rotatably mounted inside the valve chamber 101. The impeller assembly 2 forms a first hopper 201, a second hopper 202 spaced apart from the first hopper 201, and an intermediate hopper 203 located between the first hopper 201 and the second hopper 202 to receive material from the first hopper 201 and the second hopper 202 at the moment the rotary valve rotates. The first hopper 201, the intermediate hopper 203, and the second hopper 202 are arranged sequentially along the axial direction of the impeller assembly 2, and both the first hopper 201 and the second hopper 202 are along the axial direction of the impeller assembly 2. The hoppers are inclined, meaning that the cross-sections of the first hopper 201 and the second hopper 202 are parallelograms, and their axes form a certain angle with the axis of the impeller assembly 2. When the impeller assembly 2 is not rotating, and the first hopper 201 and the second hopper 202 receive material from the feed inlet 102, the inclined state of the two hoppers causes the material inside them to tend to flow in the direction of rotation of the impeller assembly 2. When the impeller assembly 2 suddenly rotates, some material can easily enter the intermediate hopper 203 from its respective hopper, causing the remaining material to loosen, and the impeller assembly 2 can rotate smoothly to feed the material.

[0033] The feed inlet 102 is equipped with a diversion plate 3 for blocking the intermediate hopper 203 and diverting the material to the first hopper 201 and the second hopper 202. The diversion plate 3 needs to block the intermediate hopper 203 to prevent the material from the feed inlet 102 from falling into the intermediate hopper 203. If the material continuously falls into the intermediate hopper 203 and fills it up, the material in the first hopper 201 and the second hopper 202 will not be able to enter the intermediate hopper 203, which will still cause the impeller assembly 2 to get stuck. On the other hand, the diversion plate 3 guides the material evenly to the first hopper 201 and the second hopper 202 to avoid excessive deviation in the amount of material entering the two hoppers, which would affect the rotation of the impeller assembly 2.

[0034] In this embodiment, a diversion plate 3 is used to cover the intermediate hopper 203 to prevent material from directly entering it from the feed inlet 102. The intermediate hopper 203 is used as a transition container to receive material from the first hopper 201 and the second hopper 202. This allows the material in the first hopper 201 and the second hopper 202 to enter the intermediate hopper 203 at the moment the impeller assembly 2 rotates. This loosens the remaining material in the first hopper 201 and the second hopper 202, allowing the impeller assembly 2 to rotate smoothly for feeding. There is no need to replace the high-power motor, saving costs. Furthermore, the first hopper 201 and the second hopper 202 are inclined along the axis of the impeller assembly 2, which makes the material inside them flow more easily into the intermediate hopper 203.

[0035] In some examples, such as Figure 5 and Figure 6 As shown, a first notch 204 is provided between the first hopper 201 and the intermediate hopper 203 to connect the two, and a second notch 205 is provided between the second hopper 202 and the intermediate hopper 203 to connect the two. Both the first notch 204 and the second notch 205 are located on the side away from the impeller assembly 2 shaft 211. In this embodiment, the inlet 102 is located above, and the outlet 103 is located below. Feeding can only be achieved when both the first hopper 201 and the second hopper 202 are rotated to be opposite the inlet 102. At this time, the material is far from the impeller assembly 2 shaft 211. The first notch 204 and the second notch 205 on one side of the impeller assembly 2 are located at the top of the first hopper 201 and the second hopper 202. The first hopper 201 and the second hopper 202 are respectively connected to the top of the intermediate hopper 203. During the continuous feeding process, the material in the first hopper 201 and the second hopper 202 will not flow to the intermediate hopper 203. The material at the bottom of the first hopper 201 and the second hopper 202 is relatively solid, while the material at the top is relatively loose. At the moment the impeller assembly 2 rotates, the material at the top is more likely to enter the intermediate hopper 203.

[0036] In some examples, such as Figure 5 and Figure 6As shown, the impeller assembly 2 includes a plurality of spaced first blades 206 and a plurality of spaced second blades 207. A first hopper 201 is formed between two adjacent first blades 206, and there are a plurality of first hoppers 201. A second hopper 202 is formed between two adjacent second blades 207, and there are also a plurality of second hoppers 202. The first blades 206 and the second blades 207 are both inclined along the axial direction of the impeller assembly 2. A plurality of first blades 206 and a plurality of second blades 207 correspond one-to-one, and each first blade 206 and its corresponding second blade 207 form an "eight" shaped structure. The lower surface of the diverter plate 3 matches the rotation trajectory of the first blade 206 or the second blade 207 to avoid interference with their rotation and to prevent material from entering the intermediate hopper 203 from the gap between the first blade 206 (or the second blade 207) and the diverter plate 3. The width of the diverter plate 3 is greater than the width of the intermediate hopper 203 to completely block the intermediate hopper 203.

[0037] In some examples, such as Figure 5 and Figure 6 As shown, the intermediate hopper 203 has several, and the impeller assembly 2 also includes several intermediate blades 208 spaced apart. The intermediate blades 208 can be arranged parallel or inclined along the axis of the impeller assembly 2. Due to the presence of the diverter plate 3, the material in the intermediate hopper 203 will not be blocked. Therefore, in this embodiment, the intermediate blades 208 are arranged parallel along the axis of the impeller assembly 2.

[0038] An intermediate hopper 203 is formed between two adjacent intermediate blades 208. A number of first hoppers 201, a number of intermediate hoppers 203 and a number of second hoppers 202 correspond one-to-one. The material in each first hopper 201 and second hopper 202 flows into its corresponding intermediate hopper 203.

[0039] In some examples, such as Figure 5 and Figure 6 As shown, a first partition plate 209 is provided between the first hopper 201 and the intermediate hopper 203. The first partition plate 209 has a ring structure. A plurality of first notches 204 are arranged circumferentially on the first partition plate 209 and located on the outer edge of the first partition plate 209. The plurality of first hoppers 201, first notches 204 and intermediate hoppers 203 correspond one to one.

[0040] A second partition plate 210 is provided between the second hopper 202 and the intermediate hopper 203. The second partition plate 210 has a ring structure. A number of second notches 205 are arranged circumferentially on the second partition plate 210 and located on the outer edge of the second partition plate 210. The number of second hoppers 202, second notches 205 and intermediate hoppers 203 correspond one-to-one.

[0041] In some examples, such as Figure 5 and Figure 6 As shown, the first hopper 201 and the second hopper 202 are symmetrically arranged along the center line of the impeller assembly 2, and the cross-sectional area of ​​the intermediate hopper 203 is smaller than that of the first hopper 201. The first hopper 201 and the second hopper 202, as the main containers for material conveying, need to have sufficient capacity, while the intermediate hopper 203, as a transition container, only needs to accommodate a small amount of material at the moment the impeller assembly 2 rotates, so it does not need to occupy too large a capacity.

[0042] In some examples, such as Figure 5 and Figure 6 As shown, the first notch 204 is correspondingly disposed in the middle of the intermediate hopper 203 and the end of the first hopper 201, and the second notch 205 is correspondingly disposed in the middle of the intermediate hopper 203 and the end of the second hopper 202. The material located at the end of the first hopper 201 and the second hopper 202 is more likely to loosen and enter the intermediate hopper 203 at the moment the impeller assembly 2 rotates compared to the material in the middle.

[0043] In some examples, such as Figure 7 and Figure 8 As shown, the diversion plate 3 is formed with a first guide surface 301 for guiding material into the first hopper 201 and a second guide surface 302 for guiding material into the second hopper 202. The first guide surface 301 and the second guide surface 302 are gradually moved away from each other in a downward direction to achieve guidance.

[0044] In some examples, such as Figure 7 and Figure 8 As shown, the flow divider 3 is provided with a baffle 303 on the downstream side of the impeller assembly 2 in the rotation direction. Of course, there can also be two baffles 303, one of which is located on the downstream side of the flow divider 3 in the rotation direction of the impeller assembly 2, and the other is located on the upstream side in the rotation direction of the impeller assembly 2. That is, the two baffles 303 are located at both ends of the flow divider 3, and are used to baffle the material as the first blade 206 or the second blade 207 gradually enters the valve chamber 101 from the feed inlet 102 or gradually enters the feed inlet 102 from the valve chamber 101.

[0045] The baffle 303 is used to prevent material entering from the feed inlet 102 from falling directly between the end of the first blade 206 and the wall of the valve chamber 101, and to prevent material entering from the feed inlet 102 from falling directly between the end of the second blade 207 and the wall of the valve chamber 101. When the material enters the feed inlet 102, most of the material enters the first hopper 201 and the second hopper 202 respectively under the action of the diverting plate 3, while a small portion of the material will fall into the gap between the first blade 206 or the second blade 207 and the wall of the valve chamber 101. As the impeller assembly 2 rotates continuously, the first blade 206 or the second blade 207 can gradually approach or move away from the feed inlet 102. As it moves away from the feed inlet 102 and gradually approaches the wall of the valve chamber 101, the gap between them gradually decreases. If material falls into this gap, it will cause the blade to get stuck. The baffle part 303 can block the gap. Considering that the feed inlet 102 is located downstream of the impeller assembly 2 in the rotation direction, it is more prone to blockage. Therefore, in this embodiment, the baffle part 303 is one and is located on the downstream side.

[0046] In some examples, one end of the baffle 303 is fixed to the valve cavity 101 as a fixed end 3031, and the cross-sectional area of ​​the baffle 303 gradually decreases in the direction away from the fixed end 3031. The baffle 303 can be integrally formed with the valve body 1. The gap is located near the fixed end 3031. The large area of ​​the fixed end 3031 can tightly block this part to prevent material from entering. At the same time, the large area of ​​the fixed end 3031 increases the fixing area between it and the valve body 11, thereby improving the connection strength between the two.

[0047] The above description, based on the preferred embodiments of the present invention, provides inspiration. Those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification but must be determined according to the claims.

Claims

1. A pressure-resistant, anti-jamming, and anti-clogging rotary valve, characterized in that: The valve body (1) includes a valve cavity (101), one end of which is a feed inlet (102) and the other end is a discharge outlet (103). An impeller assembly (2) is rotatably installed inside the valve cavity (101). The impeller assembly (2) forms a first hopper (201), a second hopper (202) spaced apart from the first hopper (201), and an intermediate hopper (203) located between the first hopper (201) and the second hopper (202) to receive materials from the first hopper (201) and the second hopper (202) at the moment the rotary valve rotates. The first hopper (201) and the second hopper (202) are both inclined along the axis of the impeller assembly (2). The feed inlet (102) is provided with a diverter plate (3) for blocking the intermediate hopper (203) and diverting the material to the first hopper (201) and the second hopper (202). A first opening (204) is provided between the first hopper (201) and the intermediate hopper (203) to connect the two, and a second opening (205) is provided between the second hopper (202) and the intermediate hopper (203) to connect the two, and both the first opening (204) and the second opening (205) are located on the side away from the impeller assembly (2) shaft (211).

2. The pressure-resistant, anti-jamming, and anti-clogging rotary valve according to claim 1, characterized in that: The impeller assembly (2) includes a plurality of spaced first blades (206) and a plurality of spaced second blades (207), with a first hopper (201) formed between two adjacent first blades (206) and a second hopper (202) formed between two adjacent second blades (207).

3. The pressure-resistant, anti-jamming, and anti-clogging rotary valve according to claim 2, characterized in that: The intermediate hopper (203) has several units, and the impeller assembly (2) also includes several intermediate blades (208) arranged at intervals. The intermediate hopper (203) is formed between two adjacent intermediate blades (208). Several first hoppers (201), several intermediate hoppers (203) and several second hoppers (202) correspond one-to-one.

4. The pressure-resistant, anti-jamming, and anti-clogging rotary valve according to claim 1, characterized in that: A first partition plate (209) is provided between the first hopper (201) and the intermediate hopper (203), and a plurality of first openings (204) are arranged circumferentially on the first partition plate (209), and the plurality of first hoppers (201), first openings (204) and intermediate hoppers (203) correspond one to one; A second partition plate (210) is provided between the second hopper (202) and the intermediate hopper (203). A number of second openings (205) are arranged circumferentially on the second partition plate (210). The number of second hoppers (202), second openings (205) and intermediate hoppers (203) correspond one to one.

5. A pressure-resistant, anti-jamming, and anti-clogging rotary valve according to claim 1, characterized in that: The first hopper (201) and the second hopper (202) are symmetrically arranged along the center line of the impeller assembly (2), and the cross-sectional area of ​​the intermediate hopper (203) is smaller than that of the first hopper (201).

6. The pressure-resistant, anti-jamming, and anti-clogging rotary valve according to claim 1, characterized in that: The first notch (204) is located in the middle of the intermediate hopper (203) and at the end of the first hopper (201), and the second notch (205) is located in the middle of the intermediate hopper (203) and at the end of the second hopper (202).

7. The pressure-resistant, anti-jamming, and anti-clogging rotary valve according to claim 1, characterized in that: The diversion plate (3) is formed with a first guide surface (301) for guiding material into the first hopper (201) and a second guide surface (302) for guiding material into the second hopper (202).

8. A pressure-resistant, anti-jamming, and anti-clogging rotary valve according to claim 7, characterized in that: The diverter plate (3) is provided with a baffle (303) located downstream of the impeller assembly (2) in the direction of rotation. The baffle (303) is used to prevent material entering from the feed inlet (102) from falling directly between the end of the first blade (206) and the wall of the valve chamber (101), and to prevent material entering from the feed inlet (102) from falling directly between the end of the second blade (207) and the wall of the valve chamber (101).

9. A pressure-resistant, anti-jamming, and anti-clogging rotary valve according to claim 8, characterized in that: One end of the baffle (303) is fixed to the valve cavity (101) as a fixed end (3031), and the cross-sectional area of ​​the baffle (303) gradually decreases in the direction away from the fixed end (3031).

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