A shear can feed device

Abstract

The utility model discloses a kind of shear tank feeders, including conveying pipeline, conveying pump, conveying hose and suction head connected with shear tank in sequence, first valve is provided between conveying pump and conveying hose, shear tank feeder further includes rack, rack includes base, oblique pipeline is fixed on base, oblique pipeline upper end is provided with the opening for inserting suction head, residual material backflow pipeline is connected between the pipeline between the first valve and conveying pump in oblique pipeline bottom, second valve is provided on residual material backflow pipeline, one-way air inlet pipe is provided between first valve and conveying hose, third valve is provided on one-way air inlet pipe.This shear tank feeder can effectively reduce the problem of material waste caused by material residue in conveying hose, and effectively avoid material from suction head to drop into production environment, avoid personal injury accident.

Description

Technical Field

[0001] This utility model relates to the field of mixing equipment technology, and more particularly to a shear tank feeding device, especially a shear tank feeding device that prevents material residue in the feeding pipe. Background Technology

[0002] Shear tanks, as highly efficient mixing, dispersing, and shearing equipment, are widely used in industries such as chemical, food, pharmaceutical, and coatings. In their workflow, liquid or slurry-like raw materials are first transferred from an external tank to the inside of the shear tank; this process is typically accomplished through negative pressure suction.

[0003] Currently, the commonly used shear tank suction structure in the industry mainly includes: a suction pump connected to the shear tank, a flexible hose connected to the inlet of the suction pump, and a suction head installed at the free end of the hose. Its basic workflow is as follows: the operator inserts the suction head into the material container, starts the suction pump, and the negative pressure generated by the pump draws the material into the shear tank through the hose.

[0004] However, this traditional material suction method has significant inherent flaws that have remained unresolved: Material residue and waste issues: After the suction operation is completed and the suction pump is shut down, residual material remains inside the hose between the pump inlet and the suction head. Because the hose is typically long and naturally droops for ease of operation, the residual material inside will spontaneously drip and flow out from the suction head under gravity. For expensive specialty chemicals or raw materials, this continuous dripping can cause considerable economic losses and material waste. Simultaneously, the dripping material also contaminates the working environment, increasing cleaning and maintenance costs.

[0005] Safety and health hazards: This deficiency is particularly prominent when handling corrosive, toxic, irritating, or sensitizing chemicals. Residual material flowing from the suction head after the pump is shut off is likely to come into contact with the operator's hands or body, causing chemical burns, allergic reactions, or long-term health damage. Furthermore, material dripping onto the ground or equipment surfaces may pose a slip risk or corrode the equipment itself, presenting serious safety hazards. Utility Model Content

[0006] This invention addresses the shortcomings of existing technologies by providing a shear tank feeding device. This device effectively prevents material residue inside the hose, avoids material waste, and effectively prevents material from dripping from the suction head into the production environment, thus preventing personal injury accidents.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a shear tank feeding device, comprising a conveying pipe, a conveying pump, a conveying hose, and a suction head connected sequentially to the shear tank. A first valve is provided between the conveying pump and the conveying hose. The shear tank feeding device also includes a placement frame, which includes a base and an inclined pipe fixed to the base. An opening for inserting the suction head is provided at the upper end of the inclined pipe. A residual material return pipe is connected to the pipe between the first valve and the conveying pump at the bottom of the inclined pipe. A second valve is provided on the residual material return pipe. A one-way air inlet pipe is provided between the first valve and the conveying hose. A third valve is provided on the one-way air inlet pipe. This shear tank feeding device works by pulling the suction head out of the inclined pipe and inserting it into the material bucket during feeding. The conveying pump and the first valve are then turned on to suction the material. The material passes sequentially through the suction head, the conveying hose, the first valve, and the conveying pump, entering the shear tank through the conveying pipe. After suctioning the material bucket, the suction head is inserted back into the inclined pipe through the opening, the conveying pump is turned off, and then the second and third valves are opened. The first valve is then closed, and the conveying pump is turned on again. Any remaining material in the conveying hose passes sequentially through the suction head, the inclined pipe, the residual material return pipe, and the conveying pump into the shear tank. This structure effectively reduces material waste caused by material residue in the conveying hose and effectively prevents material from dripping from the suction head into the production environment, thus avoiding personal injury accidents.

[0008] In the above technical solution, preferably, a one-way valve is provided on the one-way air intake pipe to achieve one-way air intake.

[0009] In the above technical solution, preferably, the suction head has a tapered portion on its outer periphery, the larger end of the tapered portion being larger than the opening, and the shape of the tapered portion matching the shape of the opening. This structure ensures good airtightness between the suction head and the inclined pipe, allowing almost all air to be drawn in through the one-way air inlet when suctioning residual material in the hose, thereby improving the suction effect of residual material in the hose.

[0010] In the above technical solution, preferably, an elastic sealing ring is fixedly provided on the opening, and the inner ring shape of the elastic sealing ring matches the shape of the conical part. This structure further improves the airtightness between the suction head and the inclined pipe, allowing almost all air to be drawn from the one-way air inlet when suctioning residual material in the hose, thereby improving the suction effect of residual material in the hose.

[0011] In the above technical solution, preferably, a positioning sleeve is threaded onto the open side, and the elastic sealing ring is fixed to the inner wall of the positioning sleeve. This structure facilitates the installation and positioning of the elastic sealing ring.

[0012] In the above technical solution, preferably, the top of the suction head is provided with a threaded section with external threads, and a support portion is provided inside the inclined pipe. The support portion is provided with a threaded hole that matches the threaded section. The threaded section is screwed into the threaded hole to squeeze the tapered portion tightly against the elastic sealing ring. This structure allows the tapered portion to be squeezed tightly against the elastic sealing ring by the rotation of the suction head when it is inserted into the inclined pipe, further improving the airtightness between the suction head and the inclined pipe.

[0013] In the above technical solution, preferably, the support portion is provided with material passage holes on both sides. This structure ensures that the support portion does not obstruct the material inside the inclined pipe, allowing the material on both sides of the support portion to fall normally to the bottom of the inclined pipe under gravity and be sucked into the shear tank from the residual material return pipe.

[0014] In the above technical solution, preferably, the shear tank feeding device further includes a hook for hanging the conveying hose, the hook being higher than the placement frame. Hanging the conveying hose on the hook allows a portion of the residual material inside the conveying hose to fall into the inclined pipe due to gravity, and also prevents the conveying hose from tangling, thus affecting the residual material absorption effect.

[0015] Compared with the prior art, this utility model has the following beneficial effects: When feeding the shear tank, this shear tank feeding device pulls the suction head out of the inclined pipe and inserts it into the material bucket. The conveying pump and the first valve are turned on to suck up the material. The material passes through the suction head, the conveying hose, the first valve, and the conveying pump in sequence through the conveying pipe into the shear tank. After the material bucket is sucked up, the suction head is inserted into the inclined pipe through the opening, the conveying pump is turned off, and then the second valve and the third valve are turned on. The first valve is turned off, and then the conveying pump is turned on again. The remaining material in the conveying hose will pass through the suction head, the inclined pipe, the residual material return pipe, and the conveying pump in sequence into the shear tank. This structure effectively reduces the problem of material waste caused by material residue in the conveying hose and effectively prevents material from dripping from the suction head into the production environment, thus avoiding personal injury accidents. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure when suctioning residual material from the hose according to an embodiment of the present invention.

[0017] Figure 2 This is a cross-sectional view of the placement rack in an embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the structure when the present invention absorbs materials according to an embodiment. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments: See below Figures 1 to 3 A shear tank feeding device includes a conveying pipe 1, a conveying pump 2, a conveying hose 3, and a suction head 4 connected in sequence to the shear tank. A first valve 5 is provided between the conveying pump 2 and the conveying hose 3. The shear tank feeding device also includes a placement frame 6, which includes a base 7 and an inclined pipe 8 fixed on the base 7. An opening 9 for inserting the suction head 4 is provided at the upper end of the inclined pipe 8. A residual material return pipe 10 is connected between the bottom of the inclined pipe 8 and the pipe between the first valve 5 and the conveying pump 2. A second valve 11 is provided on the residual material return pipe 10. A one-way air inlet pipe 12 is provided between the first valve 5 and the conveying hose 3. A third valve 13 is provided on the one-way air inlet pipe 12. This shear tank feeding device works by pulling the suction head 4 out of the inclined pipe 8 and inserting it into the material bucket. The conveying pump 2 and the first valve 5 are then turned on to suction the material. The material passes sequentially through the suction head 4, the conveying hose 3, the first valve 5, and the conveying pump 2 through the conveying pipe 1 into the shear tank. After suctioning the material bucket, the suction head 4 is inserted into the inclined pipe 8 through the opening 9. The conveying pump 2 is then turned off, and the second valve 11 and the third valve 13 are opened. The first valve 5 is then closed, and the conveying pump 2 is turned on again. Any remaining material in the conveying hose 3 passes sequentially through the suction head 4, the inclined pipe 8, the residual material return pipe 10, and the conveying pump 2 into the shear tank. This structure effectively reduces material waste caused by material residue in the conveying hose 3 and effectively prevents material from dripping from the suction head 4 into the production environment, thus avoiding personal injury accidents.

[0020] In this embodiment, a one-way valve is provided on the one-way air intake pipe 12 to achieve one-way air intake.

[0021] In this embodiment, a tapered portion 14 is provided on the outer periphery of the suction head 4. The larger end of the tapered portion 14 is larger than the opening 9, and the shape of the tapered portion 14 matches the shape of the opening 9. This structure enables the suction head 4 to have good airtightness with the inclined pipe 8, and when sucking up residual material in the hose, almost all of the air can be sucked in through the one-way air inlet pipe 12, thereby improving the suction effect of residual material in the hose.

[0022] In this embodiment, an elastic sealing ring 15 is fixedly provided on the opening 9, and the inner ring shape of the elastic sealing ring 15 matches the shape of the conical part 14. This structure further improves the airtightness between the suction head 4 and the inclined pipe 8, and when suctioning residual material in the hose, almost all air can be drawn in from the one-way air inlet pipe 12, thereby improving the suction effect of residual material in the suction hose.

[0023] In this embodiment, a positioning sleeve 16 is threaded onto the opening 9 side, and the elastic sealing ring 15 is fixed to the inner wall of the positioning sleeve 16. This structure facilitates the installation and positioning of the elastic sealing ring 15.

[0024] In this embodiment, the top of the suction head 4 is provided with a threaded section 17 with external threads, and a support portion 18 is provided inside the inclined pipe 8. The support portion 18 is provided with a threaded hole 19 that matches the threaded section 17. The threaded section 17 is screwed into the threaded hole 19 to squeeze the tapered portion 14 tightly against the elastic sealing ring 15. With this structure, when the suction head 4 is inserted into the inclined pipe 8, the rotation of the suction head 4 squeezes the tapered portion 14 tightly against the elastic sealing ring 15, further improving the airtightness between the suction head 4 and the inclined pipe 8.

[0025] In this embodiment, the support part 18 is provided with material passage holes 20 that extend through both sides. This structure ensures that the support part 18 does not obstruct the material inside the inclined pipe 8, allowing the material on both sides of the support part 18 to fall normally to the bottom of the inclined pipe 8 under gravity and be sucked into the shear tank from the residual material return pipe 10.

[0026] In this embodiment, the shear tank feeding device also includes a hook 21 for hanging the conveying hose 3, and the hook 21 is higher than the placement frame 6. Hanging the conveying hose 3 on the hook 21 allows a portion of the residual material in the conveying hose 3 to fall into the inclined pipe 8 due to gravity, and also prevents the conveying hose 3 from getting tangled, which would affect the residual material absorption effect.

[0027] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A shear tank feeding device, comprising a conveying pipe (1), a conveying pump (2), a conveying hose (3), and a suction head (4) connected in sequence to the shear tank, characterized in that: A first valve (5) is provided between the conveying pump (2) and the conveying hose (3). The shear tank feeding device also includes a placement frame (6). The placement frame (6) includes a base (7) and an inclined pipe (8) fixed on the base (7). An opening (9) for inserting a suction head (4) is provided at the upper end of the inclined pipe (8). A residual material return pipe (10) is connected between the bottom of the inclined pipe (8) and the pipe between the first valve (5) and the conveying pump (2). A second valve (11) is provided on the residual material return pipe (10). A one-way air inlet pipe (12) is provided between the first valve (5) and the conveying hose (3). A third valve (13) is provided on the one-way air inlet pipe (12).

2. The shear tank feeding device as described in claim 1, characterized in that: One-way air intake is achieved by setting a one-way valve on the one-way air intake pipe (12).

3. The shear tank feeding device as described in claim 1, characterized in that: The suction head (4) has a tapered part (14) on its outer periphery. The larger end of the tapered part (14) is larger than the opening (9). The shape of the tapered part (14) matches the shape of the opening (9).

4. The shear tank feeding device as described in claim 3, characterized in that: An elastic sealing ring (15) is fixedly provided on the opening (9), and the inner ring shape of the elastic sealing ring (15) matches the shape of the tapered part (14).

5. The shear tank feeding device as described in claim 4, characterized in that: The opening (9) is threaded with a positioning sleeve (16), and the elastic sealing ring (15) is fixed to the inner wall of the positioning sleeve (16).

6. The shear tank feeding device as described in claim 4, characterized in that: The suction head (4) is provided with a threaded section (17) with external threads at the top. The inclined pipe (8) is provided with a support part (18). The support part (18) is provided with a threaded hole (19) that matches the threaded section (17). The threaded section (17) is screwed into the threaded hole (19) to squeeze the tapered part (14) tightly against the elastic sealing ring (15).

7. A shear tank feeding device as described in claim 6, characterized in that: The support part (18) is provided with material passage holes (20) that run through both sides.

8. The shear tank feeding device as described in claim 1, characterized in that: The shear tank feeding device also includes a hook (21) for hanging the conveying hose (3), the hook (21) being higher than the placement frame (6).

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