Accurate solid particle and powder material batching device

Abstract

The utility model discloses an accurate solid particle and powder material batching device, and relates to the technical field of batching. The precise solid particle and powder material batching device comprises a raw material bin assembly and a weighing bin assembly, the raw material bin assembly comprises at least one raw material bin unit, and each raw material bin unit comprises a raw material bin, an outlet valve, a vibrating feeder, a weighing sensor and a mounting bracket. According to the precise batching device for the solid particle and powder materials, the reliability of weighing data is improved by comparing the reduction amount of the materials in the raw material bins with the increase amount of the materials in the weighing bins, the precise batching device can be composed of a plurality of raw material bin assemblies and the weighing bins, and the types of the materials in the raw material bins, the materials in batching formulas and the weight can be configured; and during operation, the opening degree of an electric outlet valve of the raw material bin does not need to be fully opened or fully closed, so that discharging can be accurately controlled, material blocking of the valve is avoided, long-term reliable operation of an electric actuating mechanism is achieved, and the problem that materials adhere to the bin wall can be solved.

Description

Technical Field

[0001] This utility model relates to the field of batching technology, and in particular to a precise batching device for solid particles and powder materials. Background Technology

[0002] The existing raw material silo uses an on / off outlet valve, which can only be fully open or fully closed. This can easily cause material jamming and damage to the valve, and the discharge rate is not adjustable. Furthermore, the raw material silo discharges material to the feeder through the outlet valve. The feeder is generally a screw conveyor (such as CN102990797A) or a feeding belt (such as CN111957261A), and the feeding accuracy is not adjustable, so high-precision feeding cannot be achieved. If a vibrating feeder with adjustable accuracy is used, the discharge rate of the raw material silo is not adjustable, resulting in poor feeding accuracy. After unloading, fine powder in the material adheres to the silo wall, which can easily lead to material residue. Utility Model Content

[0003] The purpose of this invention is to provide a precise batching device for solid particles and powder materials, which can solve the problems of valve plate jamming and damage to valve actuators, as well as the problems of adjusting the feed rate, high-precision batching, and fine powder material adhering to the walls of the weighing bin.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a precise batching device for solid particles and powders, comprising a raw material silo assembly and a weighing silo assembly. The raw material silo assembly includes at least two raw material silo units. Each raw material silo unit includes a raw material silo, an outlet valve, a vibrating feeder, a weighing sensor, and a mounting bracket. The top of the raw material silo is provided with mounting ears and equipped with a raw material silo weighing sensor. A flange is provided at the outlet of the raw material silo. The outlet valve is installed at the bottom of the raw material silo via the flange. The vibrating feeder is installed on the flange of the raw material silo via the mounting bracket. The mounting bracket is fixed to the flange at the bottom of the raw material silo. The weighing bin assembly is coaxially mounted with the outlet valve and is fixedly connected to the vibrating feeder via a connecting hose. The weighing bin assembly includes a weighing platform, a weighing bin, an air hammer, a vibrating motor, and a pneumatic butterfly valve. The weighing platform is constructed from an upper support and a lower support. A weighing sensor for the weighing bin is installed between the upper and lower supports. The weighing bin is mounted on the upper support. The top of the weighing bin has a material inlet, and the bottom of the weighing bin has a conical discharge section. The air hammer and vibrating motor are located on the outer wall of the conical discharge section. The pneumatic butterfly valve is installed at the outlet end of the conical discharge section, and a conical discharge pipe is installed below the butterfly valve. The discharge end of the vibrating feeder and the material inlet of the bin form a suspended non-contact docking.

[0005] Preferably, the raw material silo weighing sensors in the raw material silo unit are symmetrically arranged at the four quadrant points of the mounting ears.

[0006] Preferably, the cone angle of the conical discharge section of the weighing bin assembly is 45-60°, which facilitates material discharge.

[0007] Preferably, the vibrating feeder is mounted on the mounting bracket via elastic damping pads, and its discharge end maintains a gap of 10-30mm with the material inlet of the silo.

[0008] Preferably, the raw material silo assembly comprises 2-6 raw material silo units arranged in a circular array.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] This precision batching device for solid particles and powders improves the reliability of weighing data by comparing the decrease in material in the raw material silo with the increase in material in the weighing silo. The device can be composed of multiple raw material silo assemblies and weighing silos, and the types of raw materials, batching formulas, and weights can be configured. It can also adjust the valve opening and vibrating feeder speed by the difference between the real-time weight of the material and the target weight during batching, achieving high-precision batching. During operation, the electric outlet valve of the raw material silo does not need to be fully open or fully closed to accurately control the material discharge, ensuring that the valve does not jam and that the electric actuator operates reliably for a long time. Furthermore, the device can solve the problem of material adhering to the silo wall by using a combination of air hammer and vibrating motor, thus improving its practicality. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0012] Figure 1 This is a schematic diagram of the raw material silo structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the raw material silo and weighing silo of this utility model;

[0014] Figure 3 This is a schematic diagram of the weighing bin assembly of this utility model.

[0015] Reference numerals: 1. Raw material bin; 101. Mounting lug; 102. Raw material bin weighing sensor; 103. Mounting bracket; 104. Outlet valve; 105. Connecting hose; 106. Vibrating feeder; 2. Weighing bin assembly; 201. Upper bracket; 202. Lower bracket; 203. Weighing bin weighing sensor; 204. Weighing bin; 205. Bin body material inlet; 206. Air hammer; 207. Vibrating motor; 208. Conical discharge pipe; 209. Pneumatic butterfly valve. Detailed Implementation

[0016] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0017] Please see Figure 1-3 This utility model provides a technical solution: a precise batching device for solid particles and powders, including a raw material silo assembly and a weighing silo assembly. The raw material silo assembly includes at least two raw material silo units. Each raw material silo unit includes a raw material silo 1, an outlet valve 104, a vibrating feeder 106, a weighing sensor 102, and a mounting bracket 103. The top of the raw material silo 1 is provided with a mounting lug 101 and a raw material silo weighing sensor 102. A flange is provided on the outlet of the raw material silo 1. The outlet valve 104 is installed at the bottom of the raw material silo via the mounting bracket 103. The vibrating feeder 106 is installed on the flange of the raw material silo via the mounting bracket 103. The mounting bracket 103 is fixed to the flange at the bottom of the raw material silo 1. The vibrating feeder 106 and the outlet... Valve 104 is coaxially arranged, and a connecting hose 105 is fixedly connected between outlet valve 104 and vibrating feeder 106. Weighing bin assembly 2 includes weighing platform, weighing bin 204, air hammer 206, vibrating motor 207 and pneumatic butterfly valve. Weighing platform is formed by upper support 201 and lower support 202. Weighing bin weighing sensor 203 is set between upper support 201 and lower support 202. Weighing bin 204 is installed on upper support 201. The top of weighing bin 204 is provided with bin body material port 205. The lower part of weighing bin 204 is provided with conical discharge section. Air hammer 206 and vibrating motor 207 are located on the outer wall of conical discharge section. The discharge port of conical discharge section at the lower part of weighing bin 204 is provided with pneumatic butterfly valve 209 and conical discharge port 208.

[0018] The outlet valve 104 is equipped with an opening feedback sensor. During the batching and feeding process, the valve opening is controlled to be 20%-100%. When closed, the 20% opening is set to be fully closed. At this time, there is a gap between the valve plate and the valve body guide groove. The material will not be pushed into the gap between the valve plate and the valve body guide groove and get stuck. This solves the problem of material jamming and damaging the valve actuator. The vibrating feeder 106 can be controlled to operate at a frequency between 0%-100% during batching. After the batching stops, the vibrating feeder 106 stops running. The material leaking from the outlet valve 104, which is in the 20% opening state, will be blocked by the vibrating feeder 106. The discharge end of the vibrating feeder 106 and the silo material port 205 form a suspended non-contact docking.

[0019] The pneumatic butterfly valve 209 is installed at the bottom of the conical feeding section at the bottom of the weighing bin 204 via a flange. The conical feeding port 208 is installed below the pneumatic butterfly valve 209 via a flange. The pneumatic butterfly valve 209 is equipped with a switch status feedback sensor. During feeding, the pneumatic butterfly valve 209 remains fully closed. After feeding is completed, the pneumatic butterfly valve 209 remains fully open when discharging.

[0020] In the raw material silo unit, the raw material silo weighing sensors 102 are symmetrically arranged at the four quadrant points of the mounting lugs 101. The cone angle of the conical discharge section 208 of the weighing silo assembly is 45-60°. The vibrating feeder 106 is mounted on the mounting bracket 103 via elastic damping pads, and its discharge end maintains a gap of 10-30mm with the silo body inlet 205. The raw material silo assembly contains 2-6 raw material silo units arranged in a circular array. It automatically dispenses and weighs materials sequentially according to the formula, weighing one type before moving on to the next. The material type and weight can be configured, and the material weight is monitored in real time during dispensing. When the difference between the actual weight and the target weight is greater than the first-level deviation, the outlet valve 104 is set to its maximum opening, and the vibrating feeder 106 is set to high speed. If the difference between the real-time weight of the material and the target weight during batching is less than the first-level deviation but greater than the second-level deviation, the outlet valve 104 is set to a medium opening, and the vibrating feeder 106 is set to medium speed, spreading the material in the vibrating feeder 106 trough thinly. If the difference between the real-time weight of the material and the target weight during batching is less than the second-level deviation, the outlet valve 104 is set to a small opening, and the vibrating feeder 106 is set to slow speed, immediately stopping when the target value is reached. The vibratory feeder 106 is stopped, and the outlet valve 104 is set to the closed position. Simultaneously, the weighing of the next material is started using the same method. Once all materials have been weighed, the pneumatic butterfly valve on the conical discharge section 208 is opened for unloading. When the weighing value in the weighing bin 204 is less than 5 kg, the air hammer 206 and vibrating motor 207 are started until the weighing value in the weighing bin 204 is less than the set error. Then, the air hammer 206 and vibrating motor 207 are stopped. By comparing the decrease in material in the raw material bin with the increase in material in the weighing bin, the reliability of the weighing data is improved. Furthermore, the device can... The precision batching device consists of multiple raw material assemblies and a weighing bin. The types of materials in the raw material bins, the batching formula, and the weight are all configurable. The valve opening and the speed of the vibrating feeder can be adjusted by the difference between the real-time weight of the material and the target weight during batching, achieving high-precision batching. During operation, the electric outlet valve of the raw material bin does not need to be fully open or fully closed to accurately control the feeding, ensuring that the valve does not jam and that the electric actuator operates reliably for a long time. Furthermore, the device can solve the problem of material adhering to the bin wall by using a pneumatic hammer and a vibrating motor, thus improving its practicality.

[0021] Working principle: The system automatically batches and weighs materials sequentially according to the formula, weighing one type of material before moving on to the next. Material types and weights are configurable. During batching, if the difference between the real-time weight and the target weight is greater than the first-level deviation, the outlet valve 104 is set to maximum opening, and the vibrating feeder 106 is set to high speed. If the difference is less than the first-level deviation but greater than the second-level deviation, the outlet valve 104 is set to medium opening, and the vibrating feeder 106 is set to medium speed, spreading the material thinly within the vibrating feeder 106 trough. When the difference in weight is less than the second-level deviation, the outlet valve 104 is set to a small opening and the vibrating feeder 106 is set to a slow speed. When the target value is reached, the vibrating feeder 106 is stopped immediately and the outlet valve 104 is set to the closed position. At the same time, the weighing of the next material is started in accordance with the above method. After all materials are weighed, the pneumatic butterfly valve at the bottom of the conical discharge section is opened for unloading. When the weighing value of the weighing bin 204 is less than 5kg, the air hammer 206 and the vibrating motor 207 are started until the weighing value of the weighing bin 204 is less than the set error. Then the air hammer 206 and the vibrating motor 207 are stopped.

[0022] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A solid particle and powder material precision batching device, characterized in that, include: Raw material silo assembly and weighing silo assembly; The raw material silo assembly comprises at least two raw material silo units, each raw material silo unit including: The raw material silo (1) has mounting ears (101) at its bottom and is equipped with a raw material silo weighing sensor (102). A flange is provided on the outlet of the raw material silo (1). The outlet valve (104) is installed on the raw material silo (1) through the outlet flange of the raw material silo (1); A vibrating feeder (106) is coaxially arranged with the outlet valve (104). A connecting hose (105) is fixedly connected between the outlet valve (104) and the vibrating feeder (106). The vibrating feeder (106) is fixedly installed on the flange of the raw material silo (1) by a mounting bracket (103). The weighing bin assembly (2) includes: A weighing platform is formed by an upper support (201) and a lower support (202), with a weighing chamber weighing sensor (203) installed between the upper support (201) and the lower support (202); The weighing bin (204) installed on the upper support (201) has a bin body material inlet (205) at the top and a conical discharge section at the bottom; An air hammer (206) and a vibration motor (207) are installed on the outer wall of the weighing chamber (204); Install the pneumatic butterfly valve (209) and the conical discharge pipe (208) at the bottom outlet of the weighing bin (204); The discharge end of the vibrating feeder (106) and the material inlet (205) of the bin form a suspended non-contact docking.

2. The solid particle and powder material precise batching device according to claim 1, characterized in that: In the raw material silo unit, the raw material silo weighing sensors (102) are symmetrically arranged at the four quadrant points of the mounting ears (101).

3. The device according to claim 1, wherein: The cone angle of the conical discharge section of the weighing bin assembly is 45-60°.

4. The precise batching device for solid particles and powder materials according to claim 1, characterized in that: The vibrating feeder (106) is mounted on the mounting bracket (103) by means of elastic damping pads, and its discharge end maintains a gap of 10-30mm with the material port (205) of the silo.

5. The precise batching device for solid particles and powder materials according to claim 1, characterized in that: The raw material silo assembly comprises 2-6 raw material silo units arranged in a circular array.

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