Slag powder weighing assembly

Abstract

The slag powder weighing assembly comprises a feeding hopper, a weighing device, a discharging valve and a controller, the feeding hopper is of an interlayer structure, a feeding port is formed in the upper end of the feeding hopper, a discharging port is formed in the lower end of the feeding hopper, the weighing device is arranged below the feeding hopper, the feeding end of the weighing device is connected and communicated with the discharging port of the feeding hopper, and the discharging valve is connected with the controller. The feeding hopper is provided with an anti-blocking material part, the anti-blocking material part is used for driving the inner side of the feeding hopper to deform so as to avoid material blocking, the weighing device, the discharging valve and the anti-blocking material part are all electrically connected with the controller, and therefore the feeding hopper can receive slag powder materials, and when the discharging valve is opened, the feeding hopper can receive the slag powder materials. At the moment, slag powder in the feeding hopper can be discharged through the weighing device, the weighing device performs weighing while discharging the slag powder, the feeding hopper is arranged to be of an interlayer structure, the inner layer of the feeding hopper can deform under the action of the blockage preventing piece, and therefore blockage caused by slag powder gathering in the feeding hopper is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of powder weighing and bulking, and in particular relates to a slag powder weighing assembly. Background Art

[0002] At present, for the bulk weighing process of powders, it is necessary to use a hopper to receive the material, and then discharge the powder continuously online through a weighing element, and weigh the discharged powder at the same time. However, at present, powder usually accumulates in the feed hopper and adheres to the hopper, which affects the continuity of its discharge. At present, devices such as vibration pumps are installed on the side walls of the hopper for vibration prevention, but the noise it produces is loud, especially when it is operated suddenly, it will scare the staff. Of course, airflow blowing is also used to prevent blockage, but the instantaneous increase in pressure in the hopper will cause the surrounding dust to expand. Summary of the invention

[0003] In order to solve the above technical problems, the object of the present invention is to provide a slag powder weighing assembly which has a simple structure and can perform online weighing and bulk packing of powder materials while preventing material blockage.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the present invention is as follows: a slag powder weighing assembly, comprising a feed hopper, a weighing device, a discharge valve and a controller, the feed hopper being a sandwich structure, and the upper end of the feed hopper having a feed port, the lower end of the feed hopper having a discharge port, the weighing device being arranged below the feed hopper, and the feed end of the weighing device being connected and communicated with the discharge port of the feed hopper, and the discharge valve being arranged at the connection between the two, an anti-blocking component being arranged on the feed hopper, the anti-blocking component being used to drive the inner side of the feed hopper to deform to avoid blockage, and the weighing device, the discharge valve and the anti-blocking component are all electrically connected to the controller.

[0005] The beneficial effect of the above technical solution is that the slag powder can be received by the feed hopper, and when the discharge valve is opened, the slag powder in the feed hopper will be discharged through the weighing device, wherein the weighing device weighs the slag powder while discharging it, and the feed hopper is arranged as a sandwich structure, and its inner layer can be deformed under the action of the blocking member, thereby avoiding the accumulation of slag powder in the feed hopper and blocking it.

[0006] The feed hopper described in the above technical solution includes a hopper outer shell and a flexible inner hopper. The side wall of the hopper outer shell is a hollow structure. The flexible inner hopper is arranged in the hopper outer shell, and the two ends of the flexible inner hopper are respectively connected to the two ends inside the hopper outer shell to cover the side wall of the hopper outer shell. The anti-blocking material part is used to deform the flexible inner hopper to prevent slag and powder from being deposited on the inner wall of the flexible inner hopper.

[0007] The beneficial effect of the above technical solution is that the flexible inner bucket constitutes the inner layer of the feed hopper, which has a better deformation margin, and the hopper shell mainly provides circumferential support for the flexible inner bucket to shape it, while reducing the bearing load of the flexible inner bucket.

[0008] The hopper shell in the above technical solution includes an upper cover plate, a lower cylinder and multiple connecting rods. The upper cover plate is horizontally arranged and a feed interface is arranged in the middle thereof. The lower cylinder is vertically arranged in the middle below the upper cover plate. Multiple connecting rods are vertically arranged and distributed annularly between the upper cover plate and the lower cylinder. The upper end of each connecting rod is connected to the edge of the upper cover plate, and the lower end of each connecting rod is connected to the edge of the upper end of the lower cylinder. The flexible inner bucket is vertically arranged between the multiple connecting rods, and the two ends of the flexible inner bucket are open. The upper end of the flexible inner bucket is connected to the edge of the lower end of the upper cover plate, and the lower end of the flexible inner bucket is connected to the edge of the upper end of the lower cylinder. The feed interface and the lower end of the lower cylinder respectively constitute the feed port and the discharge port of the feed hopper.

[0009] The beneficial effects of the above technical solution are: its structure is simple, so that the flexible inner bucket can be installed more effectively in the hopper shell, and at the same time, the annular structure formed by multiple connecting rods can provide good support for the flexible inner bucket.

[0010] In the above technical solution, the upper cover plate is a circular plate, and its diameter is larger than the outer diameter of the lower cylinder, and a plurality of connecting rods are formed between the upper cover plate and the lower cylinder to form a trumpet-shaped structure.

[0011] The beneficial effect of the above technical solution is that the entire feed hopper is formed into an inverted cone-shaped structure, thereby reducing the probability of internal blockage.

[0012] The anti-blocking material component in the above technical solution includes a telescopic cylinder, a main pull rope and multiple traction ropes. A plurality of connecting ears are arranged circumferentially at intervals on the inner wall of the flexible inner bucket. The multiple traction ropes correspond to the multiple connecting ears one by one. One end of each of the traction ropes is connected to the corresponding connecting ear, and the other ends of the multiple traction ropes are connected to one end of the main pull rope. The telescopic cylinder is arranged at the upper end of the upper cover plate and is electrically connected to the controller, and the upper end of the main pull rope passes through the upper cover plate and is connected to the telescopic end of the telescopic cylinder. The telescopic cylinder contracts to drive the flexible inner bucket to be squeezed inward along the circumferential direction until it is deformed through the multiple traction ropes, or the telescopic cylinder extends to release the pulling of the traction rope on the flexible inner bucket.

[0013] The beneficial effects of the above technical solution are: its structure is simple, the noise reduction effect is good, and the control is more convenient.

[0014] In the above technical solution, the telescopic cylinder is horizontally arranged at the upper end of the upper cover plate, and a guide groove wheel is arranged at the upper end of the upper cover plate corresponding to the position where the main pull rope passes through the upper cover plate, and the middle part of the main pull rope bypasses the guide groove wheel for reversing.

[0015] The beneficial effect of the above technical solution is that the friction resistance between the main pull rope and the upper cover plate can be reduced.

[0016] The upper cover plate in the above technical solution is also provided with a dust removal interface which passes through from top to bottom, and the dust removal interface is used to connect an external negative pressure dust removal device.

[0017] The beneficial effect of the above technical solution is that the dust in the feed hopper can be sucked away in real time by the negative pressure dust removal equipment, thereby preventing the dust inside the feed hopper from overflowing.

[0018] In the above technical solution, a material level sensor electrically connected to the controller is installed in the feed hopper, which is used to sense the material level height in the feed hopper.

[0019] The beneficial effect of the above technical solution is that it can prevent the material level in the feed hopper from being too high and affecting the safe operation of the equipment.

[0020] In the above technical solution, a groove chamber is protruded upwardly at the edge of the upper cover plate, and the material level sensor is arranged in the groove chamber.

[0021] The beneficial effect of the above technical solution is that it can prevent the material level sensor from being immersed in the slag powder.

[0022] The weighing device described in the above technical solution is a Coriolis force scale.

[0023] The beneficial effect of the above technical solution is that it can perform online weighing and metering of slag powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the slag powder weighing assembly according to an embodiment of the present invention;

[0025] Figure 2 is a cross-sectional view of the feed hopper according to an embodiment of the present invention;

[0026] Figure 3 It is a vertical view of the hopper shell according to an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of electrical connections of the controller according to an embodiment of the present invention;

[0028] Figure 5 It is a schematic diagram of the distribution of the inner connecting ears when the flexible inner bucket described in an embodiment of the present invention is unfolded.

[0029] In the figure: 1. feed hopper; 11. hopper shell; 111. upper cover plate; 1111. feed interface; 1112. dust removal interface; 1113. tank chamber; 112. lower cylinder; 113. connecting rod; 12. flexible inner bucket; 121. connecting ear; 2. weighing device; 3. discharge valve; 4. controller; 5. anti-blocking material part; 51. telescopic cylinder; 52. main pull rope; 53. traction rope; 54. guide groove wheel; 6. material level sensor. DETAILED DESCRIPTION

[0030] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail by way of example with reference to the accompanying drawings in the following paragraphs. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0031] like Figure 1 As shown, this embodiment provides a slag powder weighing assembly, including a feed hopper 1, a weighing device 2, a discharge valve 3 and a controller 4, wherein the feed hopper 1 is a sandwich structure, and the upper end of the feed hopper 1 has a feed port, and the lower end of the feed hopper 1 has a discharge port, the weighing device 2 is arranged below the feed hopper 1, and the feed end of the weighing device 2 is connected and communicated with the discharge port of the feed hopper 1, and the discharge valve 3 is arranged at the connection between the two, and an anti-blocking member 5 is arranged on the feed hopper 1, and the anti-blocking member 5 is used to drive the inner side of the feed hopper 1 to deform to avoid blocking, and the weighing device 2, the discharge valve 3 and the anti-blocking member 5 are arranged on the feed hopper 1. The parts 5 are all electrically connected to the controller 4, so that the slag powder can be received by the feed hopper, and when the discharge valve is opened, the slag powder in the feed hopper will be discharged through the weighing device, wherein the weighing device weighs the slag powder while discharging it, and the feed hopper is arranged as a sandwich structure, and its inner layer can be deformed under the action of the blocking parts, thereby avoiding the accumulation of slag powder in the feed hopper and blocking the material. The weighing device 2 in this embodiment is a Coriolis force scale, which can weigh and measure the slag powder online. The discharge valve in this embodiment can adopt an electric gate valve, and the controller in this embodiment can adopt a PLC controller or an arm series single-chip microcomputer arranged in the cabinet.

[0032] like Figure 2 and Figure 3As shown, the feed hopper 1 in the above technical scheme includes a hopper outer shell 11 and a flexible inner hopper 12, the side wall of the hopper outer shell 11 is a hollow structure, the flexible inner hopper 12 is arranged in the hopper outer shell 11, and the two ends of the flexible inner hopper 12 are respectively connected to the two ends inside the hopper outer shell 11 to cover the side walls of the hopper outer shell 11, and the anti-blocking material part 5 is used to deform the flexible inner hopper 12 to prevent slag powder from being deposited on the inner wall of the flexible inner hopper 12, so that the flexible inner hopper constitutes the inner layer of the feed hopper, which has a better deformation margin, and the hopper outer shell is mainly used to provide circumferential support for the flexible inner hopper to shape it, while reducing the bearing load of the flexible inner hopper.

[0033] like Figure 2 and Figure 3 As shown, in the above technical solution, the hopper shell 11 includes an upper cover plate 111, a lower cylinder 112 and a plurality of connecting rods 113, the upper cover plate 111 is horizontally arranged, and a feed interface 1111 is arranged in the middle thereof, the lower cylinder 112 is vertically arranged in the middle below the upper cover plate 111, and a plurality of connecting rods 113 are vertically arranged and annularly spaced between the upper cover plate 111 and the lower cylinder 112, the upper end of each connecting rod 113 is connected to the edge of the upper cover plate 111, and the lower end of each connecting rod 113 is connected to the edge of the upper end of the lower cylinder 112 The flexible inner bucket 12 is vertically arranged between the multiple connecting rods 113, and the two ends of the flexible inner bucket 12 are open, the upper end of the flexible inner bucket 12 is connected to the edge of the lower end of the upper cover plate 111, and the lower end of the flexible inner bucket 12 is connected to the edge of the upper end of the lower cylinder 112, and the feed interface 1111 and the lower end of the lower cylinder 112 respectively constitute the feed port and the discharge port of the feed hopper 1, and its structure is simple, so that the flexible inner bucket can be installed more effectively in the hopper shell, and at the same time, the annular structure formed by the multiple connecting rods can provide good support for the flexible inner bucket.

[0034] like Figure 3 As shown, the upper cover plate 111 in the above technical solution is a circular plate, and its diameter is larger than the outer diameter of the lower cylinder 112, and the plurality of connecting rods 113 are formed into a trumpet-shaped structure between the upper cover plate 111 and the lower cylinder 112, so that the entire feed hopper has an inverted cone-shaped structure, thereby reducing the probability of internal blockage.

[0035] like Figure 2As shown, the anti-blocking material part 5 in the above technical solution includes a telescopic cylinder 51, a main pull rope 52 and a plurality of traction ropes 53. A plurality of connecting ears 121 are circumferentially spaced on the inner wall of the flexible inner bucket 12. The plurality of traction ropes 53 correspond to the plurality of connecting ears 121 one by one. One end of each of the traction ropes 53 is connected to the corresponding connecting ear 121, and the other end of the plurality of traction ropes 53 is connected to one end of the main pull rope 52. The telescopic cylinder 51 is arranged at the upper end of the upper cover plate 111 and is electrically connected to the controller 4. The upper end of the main pull rope 52 passes through the upper cover plate 111 and is connected to the telescopic end of the telescopic cylinder 51. The telescopic cylinder 51 contracts to drive the flexible inner bucket 12 to be squeezed inwardly along the annular direction to deform through the multiple traction ropes 53, or the telescopic cylinder 51 extends to release the traction of the traction rope 53 on the flexible inner bucket 12. The structure is simple, the noise reduction effect is good, and the operation is more convenient. Specifically, the telescopic cylinder 51 is horizontally arranged at the upper end of the upper cover plate 111, and a guide groove wheel 54 is arranged at the upper end of the upper cover plate 111 corresponding to the position where the main pull rope 52 passes through the upper cover plate 111. The middle part of the main pull rope 52 bypasses the guide groove wheel 54 to change direction, so that the friction resistance between the main pull rope and the upper cover plate can be reduced. In this embodiment, the telescopic cylinder can be a hydraulic cylinder, and the telescopic end of the telescopic cylinder in this embodiment can be arranged along the radial direction of the upper cover plate, and its telescopic end is facing the guide groove wheel. At the same time, in this embodiment, the upper cover plate is provided with a hole for the main pull rope to pass through the upper cover plate at a position close to the guide groove wheel.

[0036] like Figure 5 As shown, the flexible inner bucket 12 in this embodiment can be a trumpet-shaped cylinder made of rubber material, with its thick end facing upward and its thin end facing downward. A plurality of connecting ears 121 can be arranged at circumferential intervals on the inner wall of the flexible inner bucket. Further preferably, the plurality of connecting ears 121 can be distributed in two circles, upper and lower, respectively, and each circle has a plurality of connecting ears 121 distributed circumferentially at intervals, and a staggered distribution of the plurality of connecting ears 121 in two circles is better.

[0037] like Figure 2 As shown, the upper cover plate 111 in the above technical solution is also provided with a dust removal interface 1112 which runs through from top to bottom. The dust removal interface 1112 is used to connect an external negative pressure dust removal device. In this way, the negative pressure dust removal device can timely absorb the dust in the feed hopper in real time, thereby avoiding the overflow of dust inside the feed hopper.

[0038] like Figure 2As shown, in the above technical solution, a material level sensor 6 electrically connected to the controller 4 is installed in the feed hopper 1, which is used to sense the material level height in the feed hopper 1, so as to avoid the material level in the feed hopper being too high and affecting the safe operation of the equipment; preferably, a groove chamber 1113 is protruding upward at the edge of the upper cover plate 111, and the material level sensor 6 is arranged in the groove chamber 1113, so as to avoid the material level sensor being immersed in the slag powder. The material level sensor in this embodiment can adopt a material level radar.

[0039] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A slag powder weighing assembly, characterized in that: The invention comprises a feed hopper (1), a weighing device (2), a discharge valve (3) and a controller (4); the feed hopper (1) is a sandwich structure, and the upper end of the feed hopper (1) has a feed port, and the lower end of the feed hopper (1) has a discharge port. The weighing device (2) is arranged below the feed hopper (1), and the feed end of the weighing device (2) is connected and communicated with the discharge port of the feed hopper (1), and the discharge valve (3) is arranged at the connection point between the two. The feed hopper (1) is provided with an anti-blocking component (5), and the anti-blocking component (5) is used to drive the inner side of the feed hopper (1) to deform to avoid blockage. The weighing device (2), the discharge valve (3) and the anti-blocking component (5) are all electrically connected to the controller (4).

2. The slag powder weighing assembly according to claim 1, characterized in that: The feed hopper (1) comprises a hopper outer shell (11) and a flexible inner hopper (12); the side wall of the hopper outer shell (11) is a hollow structure; the flexible inner hopper (12) is arranged inside the hopper outer shell (11); and the two ends of the flexible inner hopper (12) are respectively connected to the two ends inside the hopper outer shell (11) to cover the side wall of the hopper outer shell (11); the anti-blocking member (5) is used to deform the flexible inner hopper (12) to prevent slag powder from being deposited on the inner wall of the flexible inner hopper (12).

3. The slag powder weighing assembly according to claim 2, characterized in that: The hopper shell (11) comprises an upper cover plate (111), a lower cylinder (112) and a plurality of connecting rods (113); the upper cover plate (111) is arranged horizontally and a feed interface (1111) is arranged in the middle thereof; the lower cylinder (112) is arranged vertically in the middle below the upper cover plate (111); a plurality of connecting rods (113) are arranged vertically and distributed annularly at intervals between the upper cover plate (111) and the lower cylinder (112); the upper end of each connecting rod (113) is connected to the edge of the upper cover plate (111); and each connecting rod (113) is connected to the upper cover plate (111). The lower end of the connecting rod (113) is connected to the edge of the upper end of the lower cylinder (112); the flexible inner bucket (12) is vertically arranged between the multiple connecting rods (113), and the two ends of the flexible inner bucket (12) are open; the upper end of the flexible inner bucket (12) is connected to the edge of the lower end of the upper cover plate (111); the lower end of the flexible inner bucket (12) is connected to the edge of the upper end of the lower cylinder (112); the feed interface (1111) and the lower end of the lower cylinder (112) respectively constitute the feed port and the discharge port of the feed hopper (1).

4. The slag powder weighing assembly according to claim 3, characterized in that: The upper cover plate (111) is a circular plate, and its diameter is greater than the outer diameter of the lower cylinder (112), and a plurality of connecting rods (113) are arranged between the upper cover plate (111) and the lower cylinder (112) to form a trumpet-shaped structure.

5. The slag powder weighing assembly according to claim 4, characterized in that: The anti-blocking material component (5) comprises a telescopic cylinder (51), a main pull rope (52) and a plurality of traction ropes (53). A plurality of connecting ears (121) are arranged circumferentially at intervals on the inner wall of the flexible inner bucket (12). The plurality of traction ropes (53) correspond to the plurality of connecting ears (121) one by one. One end of each traction rope (53) is connected to the corresponding connecting ear (121), and the other end of the plurality of traction ropes (53) is connected to one end of the main pull rope (52). The telescopic cylinder (51) is arranged at the upper end of the upper cover plate (111) and is electrically connected to the controller (4), and the upper end of the main pull rope (52) passes through the upper cover plate (111) and is connected to the telescopic end of the telescopic cylinder (51), and the telescopic cylinder (51) contracts to drive the flexible inner bucket (12) to be squeezed inward along the annular direction until it is deformed through the multiple traction ropes (53), or the telescopic cylinder (51) is extended to release the traction of the traction rope (53) on the flexible inner bucket (12).

6. The slag powder weighing assembly according to claim 5, characterized in that: The telescopic cylinder (51) is horizontally arranged at the upper end of the upper cover plate (111), and a guide groove wheel (54) is arranged at the upper end of the upper cover plate (111) corresponding to the position where the main pull rope (52) passes through the upper cover plate (111), and the middle part of the main pull rope (52) bypasses the guide groove wheel (54) to change direction.

7. The slag powder weighing assembly according to claim 3, characterized in that: The upper cover plate (111) is also provided with a dust removal interface (1112) penetrating from top to bottom, and the dust removal interface (1112) is used for externally connecting a negative pressure dust removal device.

8. The slag powder weighing assembly according to claim 3, characterized in that: A material level sensor (6) electrically connected to the controller (4) is installed in the feed hopper (1) and is used to sense the material level height in the feed hopper (1).

9. The slag powder weighing assembly according to claim 8, characterized in that: A slot chamber (1113) is protruding upwards at the edge of the upper cover plate (111), and the material level sensor (6) is arranged in the slot chamber (1113).

10. The slag powder weighing assembly according to any one of claims 1 to 9, characterized in that: The weighing device (2) is a Coriolis force balance.

Images