Conveying system with powder temporary storage function

Abstract

The utility model relates to the technical field of powder coating conveying and temporary storage, in particular to a conveying system with a powder temporary storage function, which comprises a discharging bin, a temporary storage tank, a temporary storage feeding pipe, a temporary storage discharging pipe, a vacuum pump and an air outlet pipe. The top of the discharging bin and the top of the temporary storage tank are provided with a stock bin pipe opening and a temporary storage pipe opening respectively. Corrugated pipes are arranged at the two ends of the temporary storage feeding pipe and the feeding end of the temporary storage discharging pipe, and the corrugated pipes are communicated with the temporary storage feeding pipe, the stock bin pipe opening, the feeding pipe opening, the temporary storage discharging pipe and the temporary storage pipe opening through sealing connecting devices; and the other end of the air outlet pipe is connected with an air inlet of the vacuum pump. According to the conveying system with the powder temporary storage function, the powder conveying efficiency is high, the sealing performance of connection of all pipe openings and pipelines is guaranteed through the sealing connection device, it is guaranteed that powder is not leaked during conveying, and waste or environmental pollution cannot be caused.

Description

Technical Field

[0001] The utility model relates to the technical field of powder storage and transportation, and particularly relates to a conveying system with a powder temporary storage function. Background Technique

[0002] Powder coatings are solid powder synthetic resin coatings composed of solid resins, pigments, fillers, and additives. They have the characteristics of no solvent pollution, 100% film formation, and low energy consumption. Powder coatings are a new type of coating material with numerous advantages and characteristics, and are widely used in various industries and fields, such as home decoration, equipment manufacturing, etc. As a new type of coating, there are some technical problems and challenges with higher costs in the production and construction processes of powder coatings, such as high production process requirements and limited curing conditions, and it can be regarded as a new material.

[0003] After the production of powder coatings is completed, not all of them can be immediately packaged. After production, due to problems with packaging equipment or market demand, etc., they cannot or do not need to be immediately bagged and packaged. The powder coatings need to be temporarily stored, but they cannot occupy the discharge bin (the equipment directly entered after the coating production) for a long time, otherwise it will affect the continuous production of the powder coatings. For the temporary storage of powders, the powders need to be pumped out from the discharge bin into other containers for temporary storage, and it is necessary to ensure the efficient pumping out of the powders and the sealing of the pumping equipment to avoid powder leakage and cause waste and environmental pollution. Summary of the Utility Model

[0004] The utility model provides a conveying system with a powder temporary storage function to achieve the purpose of efficiently and hermetically conveying and temporarily storing powders.

[0005] To achieve the above purpose, the technical solution of the utility model is: to provide a conveying system with a powder temporary storage function, and its innovation lies in: including a discharge bin, a temporary storage tank, a temporary storage inlet pipe, a temporary storage outlet pipe, a vacuum pump, and an outlet pipe. A separation device is connected and communicated at the top of the discharge bin, and a feed pipe orifice is provided on the separation device. A bin pipe orifice and a temporary storage pipe orifice are respectively provided at the tops of the discharge bin and the temporary storage tank; Bellows are provided at both ends of the temporary storage inlet pipe and the feed end of the temporary storage outlet pipe. Both ends of the temporary storage inlet pipe are respectively connected and communicated with the bin pipe orifice and the feed pipe orifice through the bellows. The feed end of the temporary storage outlet pipe is connected and communicated with the temporary storage pipe orifice through the bellows. The bellows are connected and communicated with the temporary storage inlet pipe, the bin pipe orifice, the feed pipe orifice, the temporary storage outlet pipe, and the temporary storage pipe orifice through a sealing connection device; One end of the outlet pipe is connected and communicated with the separation device, and the other end is connected to the air inlet of the vacuum pump.

[0006] Further, the separation device is a cyclone separator.

[0007] Furthermore, the separation device is a cloth bag separator, which includes an outer frame and a cloth bag detachably placed inside the outer frame. A sandwich layer is formed between the cloth bag and the outer frame. The feed pipe opening penetrates through the outer frame and communicates with the upper part of the side of the cloth bag. One end of the air outlet pipe communicates with the sandwich layer through the outer frame. A connecting member is provided around the bottom of the cloth bag and connected to the top of the temporary storage tank, and the cloth bag is communicated with the temporary storage tank.

[0008] Furthermore, the way that the cloth bag is detachably placed inside the outer frame is as follows: several sleeve ropes are evenly arranged on the side and top of the cloth bag, and corresponding loop fasteners are provided on the inner surface of the outer frame for each sleeve rope, and the sleeve ropes are sleeved inside the corresponding loop fasteners.

[0009] Furthermore, the way that the cloth bag is detachably placed inside the outer frame is as follows: four connecting rods are provided outside the cloth bag, two rod sleeves are symmetrically provided at the top of the cloth bag, and two rod sleeves are also symmetrically provided at the lower parts of the two side surfaces of the cloth bag. Rod holes are provided on the opposite sides of the outer frame corresponding to the rod sleeves, and the four connecting rods respectively penetrate through the rod holes and the corresponding rod sleeves to connect the cloth bag to the outer frame.

[0010] Furthermore, the sealing connection device includes two flange plates connected by bolts. One end of the two flange plates away from each other is fixed to the corrugated pipe, and the other end is fixed to the feed port of the silo or the feed end of the temporary storage feed pipe or the discharge end of the temporary storage feed pipe or the feed pipe opening or the temporary storage port or the temporary storage discharge pipe. The ends of the two flange plates close to each other are connected through a sealing device.

[0011] Furthermore, the sealing device includes a sealing ring with an arrow-shaped cross section. Sealing block rings are provided on the side surfaces of the two flange plates close to each other. The sealing ring is arranged between the sealing block rings. Each sealing block ring is provided with a sealing ring groove corresponding to the arrow side of the sealing ring, and the arrow sides of the sealing ring are respectively placed in the sealing ring grooves on both sides.

[0012] Furthermore, the sealing device includes a first sealing member with a Z-shaped cross section and a second sealing member with a circular cross section. The parts of the first sealing member connected to each other are perpendicular to each other, and the two end parts are close to the two flange plates. The first sealing member and the second sealing member are respectively sleeved on both sides of the bolt. Two extrusion ring blocks are respectively provided at the parts of the two flange plate ends corresponding to the first sealing member, and the two extrusion ring blocks respectively contact and extrude the horizontal part of the first sealing member from the upper and lower directions.

[0013] Compared with the prior art, the beneficial effects produced by the present utility model are as follows:

[0014] When the conveying system with a powder temporary storage function of the present utility model is in use, the powder can be pumped into the discharge bin through a vacuum pump via a separation device. The powder entering the separation device together with the gas is separated by the separation device, and the powder falls downward into the temporary storage tank. The separated gas is pumped out through the air outlet pipe by the vacuum pump, and the powder conveying efficiency is high. Moreover, the present utility model converts pressure into displacement or force by setting a corrugated pipe, forming a buffer during the powder conveying process, which can play a role in protecting the equipment. In addition, the sealed connection device of the present utility model ensures the sealing performance of the connection between each pipe orifice and the pipeline, ensuring that the powder conveying does not leak out, and will not cause waste or environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the accompanying drawings required for use in the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of a conveying system with a powder temporary storage function in Embodiment 1 of the present utility model.

[0017] Figure 2 It is a schematic diagram of the overall structure of a conveying system with a powder temporary storage function in Embodiment 2 of the present utility model.

[0018] Figure 3 It is a cross-sectional view of a cloth bag separator in Embodiment 3 of the present utility model.

[0019] Figure 4 For the present utility model Figure 3 Schematic diagram of the connection structure of the return-shaped fastener and the sleeve rope in.

[0020] Figure 5 It is a schematic diagram of the structure of a cloth bag separator in Embodiment 4 of the present utility model.

[0021] Figure 6 For the present utility model Figure 2 Enlarged view of A (schematic diagram of the structure in Embodiment 5) in.

[0022] Figure 7 For the present utility model Figure 6 Schematic diagram of the structure without a sealing ring in.

[0023] Figure 8 For the present utility model Figure 6 Schematic diagram of the structure when the sealing device in is changed to that in Embodiment 6.

[0024] Among them, 1 - discharge bin, 2 - temporary storage tank, 3 - temporary storage feed pipe, 4 - temporary storage discharge pipe, 5 - sealing connection device, 51 - flange, 52 - sealing ring, 53 - sealing block ring, 54 - sealing ring groove, 55 - first sealing member, 56 - second sealing member, 57 - extrusion ring block, 6 - air outlet pipe, 7 - separation device, 71 - outer frame, 72 - cloth bag, 73 - interlayer, 74 - connecting member, 75 - sleeve rope, 76 - loop fastener, 77 - connecting rod, 78 - rod sleeve, 79 - rod hole, 8 - feed pipe opening, 9 - bin pipe opening, 10 - temporary storage pipe opening, 11 - bellows, 12 - vacuum pump, 13 - bolt. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0026] Embodiment 1

[0027] This embodiment provides a conveying system with a function of temporarily storing powder materials, including a discharge bin 1, a temporary storage tank 2, a temporary storage feed pipe 3, a temporary storage discharge pipe 4, a vacuum pump 12 and an air outlet pipe 6. Its specific structure is as Figure 1 shown. A separation device 7 is connected to the top of the discharge bin 1. An inlet pipe opening 8 is provided on the separation device 7. A bin pipe opening 9 and a temporary storage pipe opening 10 are respectively provided at the tops of the discharge bin 1 and the temporary storage tank 2. Bellows 11 are provided at both ends of the temporary storage feed pipe 2 and the feed end of the temporary storage discharge pipe 3. Both ends of the temporary storage feed pipe 3 are respectively connected to the bin pipe opening 9 and the inlet pipe opening 8 through the bellows 11. The feed end of the temporary storage discharge pipe 4 is connected to the temporary storage pipe opening 10 through the bellows 11. The bellows 11 are connected to the temporary storage feed pipe 3, the bin pipe opening 9, the inlet pipe opening 8, the temporary storage discharge pipe 4 and the temporary storage pipe opening 10 through a sealing connection device 5. One end of the air outlet pipe 6 is connected to the separation device 7, and the other end is connected to the air inlet of the vacuum pump 12.

[0028] During use, the vacuum pump 12 is used to pump air, creating a negative pressure in the separation device 7 and the temporary storage feed pipe 3 connected to the separation device 7. The powder materials in the discharge bin 1 are drawn out. The powder materials enter the separation device 7 through the temporary storage feed pipe 3. In the separation device 7, the powder materials are separated from the gas passing through the separation device 7. The powder materials fall downward into the temporary storage tank 2, and the separated gas is pumped out through the air outlet pipe 6 by the vacuum pump 12. The powder material conveying is fast and efficient.

[0029] Preferably, the separation device 7 in this embodiment is a cyclone separator. A cyclone separator is an existing separator, which is a device used for the separation of gas-solid systems or liquid-solid systems and is suitable for the separation and purification of dust or particulate matter.

[0030] The discharging method of the temporary storage discharging pipe 4 can also use a vacuum pump 12 to extract the powder material, and the extraction method can be the same as the extraction method from the discharging bin 1.

[0031] Embodiment 2

[0032] In this embodiment, the separation device 7 is a bag filter, as Figure 2 shown. The bag filter includes an outer frame 71 and a bag 72 detachably placed inside the outer frame 71. The bag 72 and the outer frame 71 form an interlayer 73. The feeding pipe orifice 8 penetrates through the outer frame 71 and communicates with the upper part of the side of the bag 72. One end of the air outlet pipe 6 communicates with the interlayer 73 through the outer frame 71; a connecting member 74 is provided in a circle at the bottom of the bag and is connected to the top of the temporary storage tank 2, and the bag 72 communicates with the temporary storage tank 2.

[0033] The rest is the same as Embodiment 1.

[0034] Preferably, in this embodiment, the thickness of the interlayer 73 at one end close to the air outlet pipe 6 is greater than the thickness of the feeding interlayer 73 at one end close to the feeding pipe orifice 8.

[0035] In this embodiment, the aperture size of the bag 72 is adapted to the particle size of the coating powder, and a breathable but powder-blocking bag 72 is selected.

[0036] When this embodiment is in use, the powder material mixed with gas enters the bag 72 through the temporary storage feeding pipe 3 and the feeding pipe orifice 8. Inside the bag 72, the gas is extracted by the vacuum pump 12 through the interlayer 73, and the coating powder remains in the bag 72 and falls downward into the temporary storage tank 2 for temporary storage. The bag 72 is detachably placed inside the outer frame 71, and the bag 72 can be conveniently taken out for replacement and cleaning, and is flexible to use.

[0037] Embodiment 3

[0038] The way that the bag 72 in this embodiment is detachably placed inside the outer frame is as follows: several loop ropes 75 are evenly provided on the side and top of the bag, as Figure 3 and 4 shown. Corresponding to each loop rope 75 on the inner surface of the outer frame, there is a loop fastener 76, and the loop rope 75 is sleeved inside the corresponding loop fastener 76.

[0039] The rest is the same as Embodiment 2.

[0040] The structure of the loop fastener 76 in this embodiment is similar to a paper clip. The structure with multiple turns can prevent the loop rope 75 from slipping out of the loop fastener 76 during the powder material transportation and ensure the stability of the connection.

[0041] Embodiment 4

[0042] The way to detachably place the cloth bag in the outer frame in this embodiment is as follows: There are four connecting rods 77 outside the cloth bag 72, and two rod sleeves 78 are symmetrically arranged at the top of the cloth bag 72. As Figure 5 shown, two rod sleeves 78 are also symmetrically arranged at the lower parts of the two side surfaces of the cloth bag 72. Rod holes 79 corresponding to the rod sleeves 78 are provided on the opposite sides of the outer frame 71. The four connecting rods 77 respectively penetrate through the rod holes 79 and the corresponding rod sleeves 78 to connect the cloth bag 72 to the outer frame 71.

[0043] The rest is the same as in Embodiment 2.

[0044] In this embodiment, the cloth bag 72 is connected to the outer frame 71 by the connecting rods 77 passing through the rod holes 79 and the rod sleeves 78, with firm connection and convenient disassembly.

[0045] Embodiment 5

[0046] The sealing connection device 5 in this embodiment includes two flange plates 51 connected by two bolts 13. One end of the two flange plates 51 away from each other is fixed to the corrugated pipe 11, and the other end is fixed to the feed port of the silo pipe 9 or the feed end of the temporary storage feed pipe 3 or the discharge end of the temporary storage feed pipe 3 or the feed pipe port 8 or the temporary storage port 10 or the temporary storage discharge pipe 4. The specific connection part is determined according to the position of the sealing connection device 5; the ends of the two flange plates 51 close to each other are connected by a sealing device.

[0047] Specifically, the sealing device includes a sealing ring 52 with an arrow-shaped cross-section. As Figure 6 and 7 shown, sealing block rings 53 are provided on the side surfaces of the two flange plates 51 close to each other. The sealing ring 52 is arranged between the sealing block rings 53. Each sealing block ring 53 is provided with a sealing ring groove 54 corresponding to the arrow side part of the sealing ring 52, and the arrow side parts on both sides of the sealing ring 52 are correspondingly placed in the sealing ring grooves 54 on both sides. The arrow side part is one side of the sealing ring 52. As Figure 6 shown, the cross-section of the arrow-shaped sealing ring 52 is symmetrically arranged in the upper and lower parts with the horizontal central axis as the axis of symmetry. The upper and lower parts are respectively the arrow side parts.

[0048] The rest is the same as in Embodiment 1 or 2.

[0049] When this embodiment is in use, first embed one arrow side part of the sealing ring 52 into the sealing ring groove 54 on the flange plate 51 not connected to the corrugated pipe 11. During the process of continuously tightening the two flange plates 51 by bolts, embed the other arrow side part into the sealing ring groove 54 of the other flange plate 51, and continue to tighten the bolts to shorten the distance between the two flange plates 51, thereby squeezing the sealing ring 52 to form a seal with the flange plate 51. It is convenient to install the corrugated pipe 11 and can avoid powder leakage during powder transportation.

[0050] Example 6

[0051] The sealing device of this embodiment includes a first seal 55 with a Z-shaped cross-section and a second seal 56 with a circular cross-section. As shown, the parts connected to the first seal 55 are perpendicular to each other, and both ends are close to the two flange plates 51. The first seal 55 and the second seal 56 are respectively sleeved on both sides of the bolt. At the parts corresponding to the first seal 55 at the ends of the two flange plates 51, two extrusion ring blocks 57 are respectively provided, and the two extrusion ring blocks 57 respectively contact and extrude the horizontal part of the first seal 55 from the upper and lower directions. Figure 8 As shown, the parts connected to the first seal 55 are perpendicular to each other, and both ends are close to the two flange plates 51. The first seal 55 and the second seal 56 are respectively sleeved on both sides of the bolt. At the parts corresponding to the first seal 55 at the ends of the two flange plates 51, two extrusion ring blocks 57 are respectively provided, and the two extrusion ring blocks 57 respectively contact and extrude the horizontal part of the first seal 55 from the upper and lower directions.

[0052] The rest is the same as in Example 1 or 2.

[0053] When this embodiment is in use, the second seal 56 is placed between the two flange plates 51, and the first seal 55 is placed between the two extrusion ring blocks 57, so that the two extrusion ring blocks 57 are respectively located above and below the horizontal part of the first seal 55. By tightening the bolt to bring the two flange plates 51 closer, while extruding the second seal 56, it also causes the two extrusion ring blocks 57 to extrude on the horizontal part of the first seal 55. In actual use, the two extrusion ring blocks 57 also fit with the vertical part of the first seal 55.

[0054] The above-described embodiments are only described as the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by those of ordinary engineering and technical personnel in the field to the technical solutions of the present invention should fall within the protection scope of the present invention. The technical content claimed by the present invention has been fully recorded in the claims.

Claims

1. A conveying system with a function of temporarily storing powder materials, characterized in that: It includes a discharge bin, a temporary storage tank, a temporary storage feed pipe, a temporary storage discharge pipe, a vacuum pump and an air outlet pipe. A separation device is connected to the top of the discharge bin. There is a feed pipe opening on the separation device. A bin pipe opening and a temporary storage pipe opening are respectively provided at the top of the discharge bin and the top of the temporary storage tank. Bellows are provided at both ends of the temporary storage feed pipe and the feed end of the temporary storage discharge pipe. The two ends of the temporary storage feed pipe are respectively connected to the bin pipe opening and the feed pipe opening through the bellows. The feed end of the temporary storage discharge pipe is connected to the temporary storage pipe opening through the bellows. The bellows are connected to the temporary storage feed pipe, the bin pipe opening, the feed pipe opening, the temporary storage discharge pipe and the temporary storage pipe opening through a sealing connection device. One end of the air outlet pipe is connected to the separation device, and the other end is connected to the air inlet of the vacuum pump.

2. The conveying system with a function of temporarily storing powder materials according to claim 1, wherein: The separation device is a cyclone separator.

3. A conveying system with a function of temporarily storing powder materials according to claim 1, characterized in that: The separation device is a bag filter. The bag filter includes an outer frame and a bag detachably placed inside the outer frame. A sandwich layer is formed between the bag and the outer frame. The feed pipe opening penetrates through the outer frame and communicates with the upper part of the side of the bag. One end of the air outlet pipe communicates with the sandwich layer through the outer frame. A circle of connecting pieces is provided at the bottom of the bag and connected to the top of the temporary storage tank, and the bag is communicated with the temporary storage tank.

4. A conveying system with a function of temporarily storing powder materials according to claim 3, characterized in that: The way that the bag is detachably placed inside the outer frame is: several sleeve ropes are evenly provided on the side and top of the bag. Corresponding to each sleeve rope, a loop fastener is provided on the inner surface of the outer frame, and the sleeve rope is sleeved inside the corresponding loop fastener.

5. The conveying system with a function of temporarily storing powder materials according to claim 3, wherein: The way that the bag is detachably placed inside the outer frame is: four connecting rods are provided outside the bag. Two rod sleeves are symmetrically provided at the top of the bag, and two rod sleeves are also symmetrically provided at the lower parts of the two side surfaces of the bag. Rod holes are provided on the opposite sides of the outer frame corresponding to the rod sleeves. The four connecting rods respectively penetrate through the rod holes and the corresponding rod sleeves to connect the bag to the outer frame.

6. The conveying system with a function of temporarily storing powder materials according to claim 1, wherein: The sealing connection device includes two flange plates connected by bolts. One of the ends of the two flange plates away from each other is fixed to the bellows, and the other end is fixed to the bin pipe opening or the feed end of the temporary storage feed pipe or the discharge end of the temporary storage feed pipe or the feed pipe opening or the temporary storage pipe opening or the temporary storage discharge pipe. The ends of the two flange plates close to each other are connected through a sealing device.

7. The conveying system with a function of temporarily storing powder materials according to claim 6, characterized in that: The sealing device includes a sealing ring with an arrow-shaped cross-section. Sealing block rings are provided on the side surfaces of the two flange plates close to each other. The sealing ring is arranged between the sealing block rings. Each sealing block ring is provided with a sealing ring groove corresponding to the arrow side part of the sealing ring, and the arrow side parts of the sealing ring are respectively placed in the sealing ring grooves on both sides.

8. The conveying system with a function of temporarily storing powder materials according to claim 6, characterized in that: The sealing device includes a first sealing member with a Z-shaped cross-section and a second sealing member with a circular cross-section. The parts of the first sealing member connected to each other are perpendicular to each other, and the two end parts are close to the two flange plates. The first sealing member and the second sealing member are respectively sleeved on both sides of the bolt. Two extrusion ring blocks are respectively provided at the parts of the two flange plate ends corresponding to the first sealing member, and the two extrusion ring blocks respectively contact and extrude the horizontal part of the first sealing member from the upper and lower directions.

Images