Chemical safety feeding device

Abstract

The utility model is applicable to the field of feeding equipment, and provides a chemical safety feeding device which comprises a feeding equipment body, a feeding bin and a negative pressure bin, wherein the feeding bin and the negative pressure bin are arranged in the feeding equipment body; a filter cloth bag is mounted at a communication port of the negative pressure bin and the throwing bin; a material vibrating structure is arranged in the filtering cloth bag; the vibration structure comprises a guide piece fixed with a preset position in the filter cloth bag and a driving structure for driving the guide piece to move upwards; when the guiding piece ascends to the preset height, the driving structure releases the guiding piece, and therefore the material vibrating structure impacts the filtering cloth bag, powdery raw materials attached to the outer wall of the filtering cloth bag fall off, equipment cleaning is achieved, and meanwhile raw material recycling work is achieved.

Description

Technical Field

[0001] The utility model relates to the field of feeding equipment, in particular to a chemical safety feeding device. Background Art

[0002] With the improvement and popularization of the chemical industry, the share of products processed from chemical raw materials in people's lives has increased year by year. Among them, chemical raw materials are mainly divided into two categories: liquid raw materials and powdered raw materials.

[0003] During the feeding process of powdered chemical raw materials, it is necessary to filter the raw materials to prevent large block condensed materials from entering the reaction equipment, increasing the rate of the mixing reaction, and even causing damage to the back-end equipment. Among them, the current dust-free feeding station includes dust removal components, a feeding bin, and a material vibration screening assembly located in the feeding bin arranged from top to bottom. Among them, the dust removal assembly further includes a filter bag and a negative pressure bin connected thereto. However, after the equipment has been used for a long time, the air permeability of the filter bag will gradually decrease (the material will block the air holes of the filter bag), resulting in the inability of the air flow in the negative pressure bin to circulate, making it impossible for the equipment to perform dust removal.

[0004] The current solution to the above problem is to dismantle the filter bag and clean it. However, this cleaning method is inconvenient and affects the working efficiency of the equipment.

[0005] In summary, the prior art obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0006] In view of the above-mentioned defects, the purpose of the utility model is to provide a chemical safety feeding device, which can produce an impact effect on the filter bag through a vibrating structure, so that the powdered raw materials attached to the outer wall thereof fall off, thereby achieving equipment cleaning and raw material recovery at the same time.

[0007] In order to achieve the above-mentioned purpose, the utility model provides a chemical safety feeding device, including a feeding equipment body, a feeding bin and a negative pressure bin arranged inside the feeding equipment body; a filter bag is installed at the connecting port between the negative pressure bin and the feeding bin; a vibrating material structure is arranged inside the filter bag; the vibrating material structure includes a guide member fixed to a predetermined position inside the filter bag and a driving structure for driving the guide member to move upward; when the guide member rises to a predetermined height, the driving structure releases it.

[0008] According to the chemical safety feeding device of the utility model, a guide ring is provided at the upper end of the filter bag; the guide ring is fixedly connected to the side wall of the connecting port of the negative pressure bin; a guide hole is provided in the guide ring for the guide member to pass through and guide it; and a flow port for air flow is provided on the periphery of the guide hole.

[0009] According to the chemical safety feeding device of the utility model, the guide member is a guide rod and moves in the vertical direction.

[0010] According to the chemical safety feeding device of the utility model, a counterweight plate is arranged at the lower end of the filter bag.

[0011] According to the chemical safety feeding device of the utility model, the guide rod is outer-coated with a return spring which increases the downward impact force of the guide member.

[0012] According to the chemical safety feeding device of the utility model, the driving structure includes a hook claw arranged at the end of the guide member and a rotating disk driven by a driver to rotate; the outer edge of the rotating disk is provided with a shift plate for the hook claw; when the rotating disk rotates within a predetermined angle, the shift plate pushes the hook claw to move upward; after the rotating disk rotates to outside the predetermined angle, the shift plate releases the hook claw.

[0013] The utility model provides a chemical safety feeding device, including a feeding device body, a feeding bin and a negative pressure bin arranged inside the feeding device body; a filter bag is installed at the connecting port between the negative pressure bin and the feeding bin; when the operator completes a single feeding into the feeding bin, a negative pressure airflow is generated in the negative pressure bin (the negative pressure airflow can be generated by a negative pressure fan), and the negative pressure airflow generates an adsorption force to adsorb free dust to the outer wall of the filter bag. A vibrating material structure is arranged inside the filter bag; when the filter bag is blocked and the pressure in the negative pressure bin is too high (the negative pressure bin has a detection unit for detecting the negative pressure inside it), the control unit controls the vibrating material structure to start. The vibrating material structure includes a guide member fixed to a predetermined position inside the filter bag and a driving structure for driving the guide member to move upward; when the vibrating material is working, the driving structure drives the guide member to rise to a predetermined height, and then releases it, and the guide member moves downward to impact the filter bag, and a large amount of raw material dust attached to the outer wall of the filter bag is vibrated off by the impact. The cleaning work of the vibrating material structure not only eliminates the need to dismantle the equipment for cleaning, but also enables the recovery of raw material dust, thereby saving resources (it needs to be explained that since the raw material dust on the outer wall of the filter bag accumulates for a long period of time, that is, the filter bag will be blocked only after the equipment has been used for a long time, the vibrating material structure does not need to work frequently). The utility model uses the vibrating material structure to produce an impact effect on the filter bag, causing the powdered raw material attached to its outer wall to fall off, thereby achieving equipment cleaning and raw material recovery at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 It is an internal schematic diagram of the utility model;

[0016] Figure 3It is a structural schematic diagram of the filter bag and the vibrating material assembly of the utility model;

[0017] Figure 4 yes Figure 3 Schematic diagram of the internal structure;

[0018] In the figure, 1-feeding equipment body, 101-feeding bin, 01-filter bag, 02-negative pressure bin, 31-hook, 32-rotating disk, 33-push plate, 11-guide ring, 111-guide hole, 112-circulation port, 2-counterweight disk, 4-reset spring, 3-guide rod. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0020] See also Figure 1 and Figure 2 The utility model provides a chemical safety feeding device, which includes a feeding equipment body 1, a feeding bin 101 and a negative pressure bin 02 arranged inside the feeding equipment body 1; a filter bag 01 is installed at the connecting port between the negative pressure bin 02 and the feeding bin 101; when the operator completes a single pouring of materials into the feeding bin 101, a negative pressure airflow is generated in the negative pressure bin 02 (the negative pressure airflow can be generated by a negative pressure fan), and the negative pressure airflow generates adsorption force to adsorb free dust to the outer wall of the filter bag 01.

[0021] A vibrating material structure is provided inside the filter bag 01; when the filter bag 01 is clogged and the pressure inside the negative pressure chamber 02 is too high (the negative pressure chamber 02 has a detection unit for detecting the negative pressure inside it), the control unit controls the vibrating material structure to start.

[0022] See also Figure 3 and Figure 4 The vibrating material structure includes a guide member fixed to a predetermined position inside the filter bag 01 and a driving structure for driving the guide member to move upward; when the vibrating material is working, the driving structure drives the guide member to rise to a predetermined height and then releases it, and the guide member moves downward to impact the filter bag 01, and a large amount of raw material dust attached to the outer wall of the filter bag 01 is vibrated off by the impact. Through the cleaning work of the vibrating material structure, not only does it not need to dismantle the equipment for cleaning, but it can also realize the recovery of raw material dust and save resources (it needs to be explained that since the raw material dust on the outer wall of the filter bag 01 accumulates for a long time, that is, the filter bag 01 will not be blocked until the equipment has been used for a long time, so the vibrating material structure does not need to work frequently).

[0023] Specifically in this embodiment, the driving structure includes a hook 31 arranged at the end of the guide member and a rotating disk 32 (the rotating disk 32 is arranged in the negative pressure chamber 02) driven by a driver (the driver can be a servo rotating motor); the outer edge of the rotating disk 32 is provided with a dial plate 33 with the hook 31; when the rotating disk 32 rotates within a predetermined angle, the dial plate 33 pushes the hook 31 to move upward; after the rotating disk 32 rotates to outside the predetermined angle, the dial plate 33 releases the hook 31. The above driving structure is simple. It needs to be explained that the filter bag 01 is a bag structure with pleats on the outer wall, which not only increases the adsorption area, but also the pleats have a directional effect, so there is no need to worry about the hook 31 being unable to work with the dial plate 33 due to angle problems.

[0024] A guide ring 11 is provided at the upper end of the filter bag 01; the guide ring 11 is fixedly connected to the side wall of the connecting port of the negative pressure chamber 02; a flow port 112 for air flow is provided on the periphery of the guide hole 111, and the internal space of the filter bag 01 is connected with the internal space of the negative pressure chamber 02 through the flow port 112 to form the circulation of negative pressure airflow.

[0025] A guide hole 111 is provided in the guide ring 11 for the guide member to pass through and guide it. Specifically in the embodiment, the guide member is a guide rod 3, and moves in the vertical direction along the guide hole 111. The gravity of the guide rod 3 itself can generate a large impact during the release process. Furthermore, a counterweight plate 2 can also be provided at the lower end of the filter bag 01. By moving the guide rod 3 up and down in the vertical direction, the resistance generated by other components to it can be effectively reduced.

[0026] Preferably, the guide rod 3 is covered with a return spring 4 for increasing the downward impact force of the guide member, and the return spring 4 can also drive the guide member to produce a larger impact during the release process. At the same time, the preload force generated by the return spring 4 can be used to prevent the filter bag 01 from deforming (i.e., preventing the filter bag 01 from turning up) during the dust removal and adsorption process, thereby affecting its normal operation.

[0027] In summary, the utility model provides a chemical safety feeding device, including a feeding device body, a feeding bin and a negative pressure bin arranged inside the feeding device body; a filter bag is installed at the connecting port between the negative pressure bin and the feeding bin; when the operator completes a single pouring of materials into the feeding bin, a negative pressure airflow is generated in the negative pressure bin (the negative pressure airflow can be generated by a negative pressure fan), and the negative pressure airflow generates an adsorption force to adsorb free dust to the outer wall of the filter bag. A vibrating material structure is arranged inside the filter bag; when the filter bag is blocked and the pressure in the negative pressure bin is too high (the negative pressure bin has a detection unit for detecting the negative pressure inside it), the control unit controls the vibrating material structure to start. The vibrating material structure includes a guide member fixed to a predetermined position inside the filter bag and a driving structure for driving the guide member to move upward; when the vibrating material is working, the driving structure drives the guide member to rise to a predetermined height, and then releases it, and the guide member moves downward to impact the filter bag, and a large amount of raw material dust attached to the outer wall of the filter bag is vibrated off by the impact. The cleaning work of the vibrating material structure not only eliminates the need to dismantle the equipment for cleaning, but also enables the recovery of raw material dust, thereby saving resources (it needs to be explained that since the raw material dust on the outer wall of the filter bag accumulates for a long period of time, that is, the filter bag will be blocked only after the equipment has been used for a long time, the vibrating material structure does not need to work frequently). The utility model uses the vibrating material structure to produce an impact effect on the filter bag, causing the powdered raw material attached to its outer wall to fall off, thereby achieving equipment cleaning and raw material recovery at the same time.

[0028] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A chemical safety feeding device, characterized in that: It includes a feeding device body, a delivery bin and a negative pressure bin arranged inside the feeding device body; a filter bag is installed at the connecting port between the negative pressure bin and the delivery bin; A vibrating material structure is arranged inside the filter bag; the vibrating material structure comprises a guide member fixed to a predetermined position inside the filter bag and a driving structure for driving the guide member to move upward; When the guide member rises to a predetermined height, the driving structure releases it.

2. The chemical safety feeding device according to claim 1, characterized in that: A guide ring is provided at the upper end of the filter bag; the guide ring is fixedly connected to the side wall of the connecting port of the negative pressure chamber; A guide hole is provided in the guide ring for the guide member to pass through and guide the guide member; The periphery of the guide hole is provided with a flow opening for air flow.

3. The chemical safety feeding device according to claim 1 or 2, characterized in that: The guide member is a guide rod and moves in a vertical direction.

4. The chemical safety feeding device according to claim 1, characterized in that: A counterweight plate is arranged at the lower end of the filter bag.

5. The chemical safety feeding device according to claim 3, characterized in that: The guide rod outer sleeve is provided with a return spring which increases the downward impact force of the guide member.

6. The chemical safety feeding device according to claim 1, characterized in that: The driving structure includes a hook arranged at the end of the guide member and a rotating disk driven by a driver to rotate; The outer edge of the rotating disk is provided with a shifting plate for engaging with the hook claw; when the rotating disk rotates within a predetermined angle, the shifting plate pushes the hook claw to move upward; After the rotating disc rotates beyond a predetermined angle, the paddle releases the hook.

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