A safe feeding device for chemical raw materials

Abstract

The utility model belongs to chemical raw material loading field provides a kind of safe loading device of chemical raw material, including support frame, the upper portion of support frame is provided with two support plates of symmetrical distribution, two the support plate between being provided with loading assembly, the loading assembly includes the storage tank between two support plates, the bottom of the storage tank is connected with the discharge pipe of arrangement, the valve is arranged on the discharge pipe;The utility model is inserted into the inlet pipe of target equipment by electric push rod drive moving pipe, and sealing structure is formed between moving pipe and inlet pipe by annular airbag inflation expansion, to accurately convey the chemical raw material in storage tank to the inlet pipe of target equipment when the loading of chemical raw material is carried out, to avoid the dispersion, flying of chemical raw material in the process of feeding, greatly reduce raw material waste and pollution to working environment, meet the strict environmental protection and safety specification of modern chemical production.

Description

Technical Field

[0001] This utility model belongs to the field of chemical raw material feeding, specifically a safe feeding device for chemical raw materials. Background Technology

[0002] In the chemical production field, the safe feeding device for chemical raw materials is a key piece of equipment to ensure continuous production. Among them, screw conveyors are widely used due to their advantages such as compact structure and stable conveying. However, chemical raw materials (especially powders and viscous granules) are prone to remain on the blades of the conveyor and the inner wall of the conveyor cylinder during the conveying process, forming wall residues that are not only difficult to clean, but also lead to a decrease in subsequent conveying efficiency.

[0003] For example, Chinese patent with publication number "CN221295424U" discloses "a chemical raw material feeding device that can not only reduce the loss of chemical raw materials, but also only requires cleaning of the storage box, which is simple and efficient". It simplifies the cleaning process by optimizing the structure of the storage box and solves the problem of cleaning raw material residues to a certain extent.

[0004] However, in the aforementioned patent, after the moving storage box aligns the discharge pipe with the feed hopper of the reaction equipment, there is an unavoidable vertical drop and spatial gap between the discharge pipe and the feed hopper. When powdered or lightweight granular chemical raw materials are added, the raw materials are easily dispersed into the air due to airflow disturbance during the falling process, which not only wastes raw materials but also pollutes the production environment, making it difficult to meet the safety, environmental protection and high efficiency requirements of chemical production.

[0005] To address the problems raised in the background art, those skilled in the art have proposed a safe feeding device for chemical raw materials. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides a safe feeding device for chemical raw materials.

[0007] A safe feeding device for chemical raw materials includes a support frame, with two symmetrically distributed support plates on the upper part of the support frame, and a feeding component between the two support plates.

[0008] The feeding assembly includes a storage box disposed between two support plates. A discharge pipe is connected to the bottom of the storage box. A valve is installed on the discharge pipe. An electric push rod is installed on one side of the storage box. A connecting ring is installed at the bottom of the electric push rod. A moving pipe is installed at the bottom of the connecting ring. The discharge pipe is coaxially inserted inside the moving pipe.

[0009] Preferably, each of the two support plates is provided with a slide rail on the side that is close to each other, and an electric slider is provided on the slide rail. The side of the electric slider away from the support plate is connected to the storage box.

[0010] Preferably, a sealing assembly is provided on both the storage bin and the moving pipe. The sealing assembly includes a fan located on one side of the storage bin, an air inlet pipe connected to the air outlet of the fan, an annular airbag located on the outside of the moving pipe, and the end of the air inlet pipe away from the fan connected to the annular airbag. A one-way valve is provided on the air inlet pipe.

[0011] Preferably, an exhaust valve is provided at the upper outer side of the annular airbag.

[0012] Preferably, the outer side of the movable tube is provided with multiple retaining rings for fixing the air intake tube.

[0013] Preferably, a sealing ring is provided at the upper inner side of the moving tube, and the outer side of the discharge tube is in close contact with the inner side of the sealing ring.

[0014] Preferably, the support frame is equipped with casters with self-locking function at each of the four bottom corners.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This invention uses an electric actuator to drive a moving tube into the feed pipe of the target equipment, and utilizes an inflatable annular airbag to create a sealed structure between the moving tube and the feed pipe. This allows the chemical raw materials in the storage tank to be accurately delivered to the feed pipe of the target equipment during feeding, thereby preventing the chemical raw materials from escaping or flying during the feeding process, greatly reducing material waste and pollution to the working environment, and meeting the strict environmental protection and safety standards of modern chemical production. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the present invention;

[0018] Figure 2 This is a structural diagram showing the connection between the feeding assembly and the sealing assembly in this utility model;

[0019] Figure 3 This is a structural diagram showing the connection between the storage box and the sealing assembly in this utility model;

[0020] Figure 4 This is a cross-sectional view of the connection structure between the discharge pipe and the moving pipe in this utility model.

[0021] In the picture:

[0022] 1. Support frame; 2. Support plate; 3. Feeding assembly; 31. Storage bin; 32. Discharge pipe; 33. Valve; 34. Electric actuator; 35. Connecting ring; 36. Moving pipe; 37. Slide rail; 38. Electric slider; 4. Sealing assembly; 41. Fan; 42. Air inlet pipe; 43. Annular airbag; 44. One-way valve; 45. Exhaust valve; 5. Snap ring; 6. Sealing ring; 7. Casters. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] As attached Figure 1 To be continued Figure 4 As shown:

[0025] This utility model provides a safe feeding device for chemical raw materials, including a support frame 1, two symmetrically distributed support plates 2 on the upper part of the support frame 1, and a feeding component 3 between the two support plates 2.

[0026] refer to Figure 1 Each of the four corners of the bottom of the support frame 1 is equipped with a universal wheel 7 with a self-locking function.

[0027] In the process of feeding chemical raw materials, the support frame 1 is moved to a suitable feeding position and locked in place by the caster wheel 7, and then the feeding component 3 is used to feed the chemical raw materials.

[0028] refer to Figure 2 , Figure 3 and Figure 4 The feeding assembly 3 includes a storage box 31 disposed between two support plates 2. The bottom of the storage box 31 is connected to a discharge pipe 32, and a valve 33 is disposed on the discharge pipe 32. An electric push rod 34 is disposed on one side of the storage box 31. A connecting ring 35 is disposed at the bottom end of the electric push rod 34. A moving pipe 36 is disposed at the bottom of the connecting ring 35, and the discharge pipe 32 is coaxially inserted inside the moving pipe 36.

[0029] refer to Figure 2 Each of the two support plates 2 is provided with a slide rail 37 on the side that is close to each other. An electric slider 38 is provided on the slide rail 37. The side of the electric slider 38 away from the support plate 2 is connected to the storage box 31.

[0030] When feeding chemical raw materials, such as powders and viscous granules that are not flammable or explosive, the chemical raw materials are first poured into the storage tank 31. The storage tank 31 is moved by the cooperation of the electric slider 38 and the slide rail 37, so that the discharge pipe 32 and the moving pipe 36 can be aligned with the feed pipe of the target equipment. Then, the electric push rod 34 is activated to push the moving pipe 36 to move downward along the axis of the discharge pipe 32 until the lower end of the moving pipe 36 is inserted into the feed pipe. Then, the valve 33 on the discharge pipe 32 is opened, and the chemical raw materials in the storage tank 31 can be accurately transported to the feed pipe of the target equipment along the closed channel formed by the discharge pipe 32 and the moving pipe 36, thus completing the safe feeding.

[0031] It should be noted that the electric slider 38 and the slide rail 37 work together to drive the storage box 31 to perform a smooth linear reciprocating motion. This is existing technology and will not be described in detail here.

[0032] refer to Figure 3 and Figure 4 A sealing assembly 4 is provided on both the storage bin 31 and the moving pipe 36. The sealing assembly 4 includes a blower 41 located on one side of the storage bin 31. An air inlet pipe 42 is connected to the air outlet of the blower 41. The air inlet pipe 42 is a flexible hose. An annular airbag 43 is provided on the outside of the moving pipe 36. The end of the air inlet pipe 42 away from the blower 41 is connected to the annular airbag 43. A one-way valve 44 is provided on the air inlet pipe 42.

[0033] refer to Figure 4 An exhaust valve 45 is connected to the upper outer side of the annular airbag 43.

[0034] To further prevent the chemical raw materials from escaping during feeding, after the moving tube 36 is inserted into the feed pipe, the blower 41 on one side of the storage tank 31 is started. The gas generated by the blower 41 is inflated into the annular airbag 43 through the air inlet pipe 42. The one-way valve 44 can prevent gas backflow and ensure that the inflation process is stable and efficient. As the gas is continuously injected, the annular airbag 43 gradually expands and tightly fits the inner wall of the feed pipe, thereby forming a sealing structure at the gap between the moving tube 36 and the feed pipe, so that the chemical raw materials will not escape during feeding. After the feeding operation is completed, the exhaust valve 45 at the upper outer side of the annular airbag 43 is opened, the gas in the annular airbag 43 is discharged and it contracts. At this time, the moving tube 36 can be driven upward to reset by the electric push rod 34 for subsequent operations.

[0035] refer to Figure 4 A sealing ring 6 is provided on the upper inner side of the moving tube 36, and the outer side of the discharge tube 32 is in close contact with the inner side of the sealing ring 6.

[0036] When the moving pipe 36 moves up and down along the axial direction of the discharge pipe 32, the sealing ring 6 at the upper inner end of the moving pipe 36 is always tightly fitted with the outer wall of the discharge pipe 32 to form a sliding seal fit, which can effectively block the gap between the moving pipe 36 and the discharge pipe 32, and prevent chemical raw materials from leaking and escaping from the joint between the two during the transportation process, thereby further improving the safety and reliability of the feeding operation.

[0037] It should be noted that the sealing ring 6 is made of a corrosion-resistant, highly elastic, and wear-resistant material. This type of material not only has excellent sealing and fitting performance, but also maintains a tight fit during the relative sliding process of the moving pipe 36 and the discharge pipe 32, effectively blocking gap leakage. At the same time, its wear resistance can withstand long-term sliding friction without deformation or aging, ensuring a stable sealing effect during frequent feeding operations, further improving the safety, reliability, and service life of the feeding operation.

[0038] refer to Figure 3 and Figure 4 Multiple retaining rings 5 ​​are provided on the outer side of the moving tube 36 for fixing the intake tube 42.

[0039] When the moving tube 36 moves up and down along the discharge tube 32, it will drive the air inlet tube 42 to move in sync. At this time, the retaining ring 5 can stabilize and limit the air inlet tube 42, and fix the air inlet tube 42 in an orderly manner on the outer wall of the moving tube 36. This prevents the air inlet tube 42 from swinging, getting tangled or drooping due to the movement of the moving tube 36, and ensures that the air inlet tube 42 always maintains a safe distance from the inner wall of the feed tube, thus ensuring the smooth operation of the inflation sealing and feeding process.

[0040] Working Principle: In use, all electrical components described in this application are externally connected to a power supply and control switch. When feeding chemical raw materials, the support frame 1 is first moved to a suitable feeding position and locked in place by the casters 7. Then, the external control switch activates the electric slider 38, driving it to move the storage box 31 smoothly along the slide rail 37. During this process, the height of the storage box 31 can be monitored in real time by an external displacement sensor until the discharge pipe 32 at the bottom of the storage box 31 and the moving pipe 36 are aligned with the inlet pipe of the target equipment. The electric slider 38 then stops automatically. Next, the external control switch controls the electric push rod 34 to work, pushing the moving pipe 36 downward. Until the lower end is inserted into the feed pipe, when the lower end of the moving tube 36 is fully inserted, this judgment can be fed back to the external control switch by the displacement sensor installed on the electric push rod 34. Then the electric push rod 34 stops working. Next, the external control switch controls the fan 41 to work and inflate the annular air bag 43 through the air inlet pipe 42. After the annular air bag 43 expands, it fits tightly against the inner wall of the feed pipe, forming a sealing structure in the gap between the moving tube 36 and the feed pipe. Then, the valve 33 on the discharge pipe 32 is opened by the external control switch. The chemical raw materials in the storage box 31 are accurately transported to the feed pipe of the target equipment along the sealed channel formed by the discharge pipe 32 and the moving tube 36, completing the safe feeding process of chemical raw materials.

[0041] The embodiments of this utility model are given for the purpose of illustration and description. Although embodiments of this utility model have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the utility model. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this utility model, which is defined by the appended claims and their equivalents.

Claims

1. A safe feeding device for chemical raw materials, characterized in that, Includes a support frame (1), the upper part of which is provided with two symmetrically distributed support plates (2), and a feeding assembly (3) is provided between the two support plates (2). The feeding assembly (3) includes a storage box (31) disposed between two support plates (2). The bottom of the storage box (31) is connected to a discharge pipe (32). A valve (33) is provided on the discharge pipe (32). An electric push rod (34) is provided on one side of the storage box (31). A connecting ring (35) is provided at the bottom end of the electric push rod (34). A moving pipe (36) is provided at the bottom of the connecting ring (35). The discharge pipe (32) is coaxially inserted inside the moving pipe (36).

2. The safe feeding device for chemical raw materials according to claim 1, characterized in that: Each of the two support plates (2) is provided with a slide rail (37) on one side close to the other. An electric slider (38) is provided on the slide rail (37). The side of the electric slider (38) away from the support plate (2) is connected to the storage box (31).

3. The safe feeding device for chemical raw materials according to claim 1, characterized in that: A sealing assembly (4) is provided on both the storage tank (31) and the moving pipe (36). The sealing assembly (4) includes a fan (41) located on one side of the storage tank (31). An air inlet pipe (42) is connected to the air outlet of the fan (41). An annular airbag (43) is provided on the outside of the moving pipe (36). The end of the air inlet pipe (42) away from the fan (41) is connected to the annular airbag (43). A one-way valve (44) is provided on the air inlet pipe (42).

4. The safe feeding device for chemical raw materials according to claim 3, characterized in that: An exhaust valve (45) is connected to the upper outer side of the annular airbag (43).

5. The safe feeding device for chemical raw materials according to claim 3, characterized in that: The outer side of the moving tube (36) is provided with multiple retaining rings (5) for fixing the air intake tube (42).

6. The safety feeding device for chemical raw materials according to claim 1, characterized in that: A sealing ring (6) is provided on the upper inner side of the moving tube (36), and the outer side of the discharge tube (32) is in close contact with the inner side of the sealing ring (6).

7. The safe feeding device for chemical raw materials according to claim 1, characterized in that: The support frame (1) is equipped with casters (7) with self-locking function at the four corners of its bottom.

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