CN209348824U - A bentonite superfine powder feeder - Google Patents

Abstract

A bentonite superfine powder feeding machine, comprising a feeding bin, a support frame of a fixing device, a clamp, an air pulse device arranged in the feeding bin, a filter screen installed in the feeding bin, and an air filter installed on the filter screen. The vibrator also includes a rotary valve, a conveying pipe connected to the rotary valve, a buffer bin, a pressure switch arranged on the buffer bin, a fan connected to the buffer bin, and a discharge port connected to the bottom of the buffer bin. There are valves. The device is especially suitable for feeding ultra-fine bentonite. It is not easy to raise dust and bridge, which is conducive to clean environment; sustainable and uniform feeding, large conveying capacity; low energy consumption, low noise; flexible pipeline layout, small footprint, excellent performance performance.

Description

A bentonite superfine powder feeder

technical field

The utility model relates to the technical field of feeding devices, in particular to a bentonite superfine grinding powder feeding machine.

Background technique

Bentonite, also called bentonite, bentonite or bentonite, is a non-metallic mineral with montmorillonite as the main mineral component. Bentonite has many properties, such as expansibility, adsorption, thixotropy, etc., and has a wide range of applications. It has been used in more than 300 fields at home and abroad, and is called "universal soil".

Bentonite often requires finishing. The bentonite superfine mill is a kind of ultrafine pulverization equipment, which can process bentonite products to a fineness greater than 1000 meshes, but it has high requirements for pretreatment. Generally, it is generally required to first grind the bentonite with an ordinary mill. Crush to about 200 meshes, and then perform ultra-fine crushing to meet the particle size requirements.

Pneumatic conveying uses airflow as a carrier to convey powder and granular solid materials in pipelines. The flow of air (or inert gas) is realized by the pressure difference between the two ends of the conveying pipe, which directly provides the energy required for the movement of the material particles in the conveying pipe. Compared with other bulk solid material conveying equipment, the pneumatic conveying system is the most suitable conveying equipment for the continuous conveying of small granular solid materials, and it is also suitable for intermittently conveying a large amount of granular materials from tank cars, railway vehicles and cargo ships to storage bins; The conveying system can make full use of space, and can convey materials up, down or around buildings, large equipment and other obstacles, and its conveying pipe can be higher than or avoid the space occupied by other devices or equipment.

Due to the characteristics of bentonite, especially bentonite crushed into fine powder, it is easy to generate dust, easy to bridge, poor fluidity and other problems in the process of material transportation, and it is difficult to effectively discharge the material.

Publication number is CN204714104U a kind of oscillating type fine powder directional feeder, this feeder comprises by hopper, 80 mesh screens and its support plate, sliding brush, motor, guide rail and conveyor belt; Be provided with transmission guide rail in the hopper, transmission guide rail There is a sliding brush on the bottom, and the sliding brush reciprocates along the transmission guide rail under the drive of the motor. The motor is installed on the wall of the hopper; there is a support frame under the sliding brush in the hopper, a mesh screen is installed on the support frame, and a conveyor is installed under the hopper. Machine, the hopper is sealed with the conveyor and has a feeding port on one side. The equipment adopts the feeding method of mechanical equipment. During the feeding process, the materials can be continuously and dispersedly added to the reactor to prevent large groups of powdery raw materials from being added to the reactor at one time; the dispersed addition of materials is conducive to better mixing of materials in the reactor. , easy to control the reaction temperature.

If the material is too fine when the device feeds at the feeding port, there is still the problem of dust and difficulty in feeding, and the dust is too fine to easily adhere to the pipe wall or the conveyor belt when it is conveyed on the conveyor belt, resulting in material loss.

A feeding device whose publication number is CN202935965 includes a feeding bin, a feeder connected to the waste bin, and a dissolving tank. The powder in the feeding bin is transported to the dissolving tank via the feeder. The feeding device also includes a The vibration motor on the feeding bin can provide excitation to the powder material in the feeding bin in good time, so that the powder material can be dispersed evenly and ensure the continuity and adequacy of feeding.

The device conveys materials through negative pressure pneumatically, but the powder material in the collection tank is easy to bridge and harden due to its small particles, which will cause blockage and cause the equipment to run poorly.

Utility model content

In order to solve the above-mentioned problems of the prior art, the purpose of this utility model is to provide a kind of bentonite superfine grinding feeder,

In order to achieve the above object, the main technical solutions adopted by the utility model are as follows:

A bentonite superfine powder feeding machine, comprising a feeding bin, a support frame of a fixing device, an air pulse device arranged in the feeding bin, a buffer bin connected to the feeding bin through a conveying pipe, a fan connected to the buffer bin, and a device At the discharge port at the bottom of the buffer bin, a valve is arranged on the discharge port.

Further, the air pulse device includes an air pulse tube, and the air pulse tube is provided with several nozzles communicating with it, and the air pulse tube is also provided with a pulse valve, and the air pulse tube communicates with the gas storage device arranged on the outer wall of the feeding bin .

Further, the pulse valve is connected with the controller, and the controller is arranged on the external side wall of the feeding bin.

Preferably, the air pulse tube is arranged at the middle and/or lower part of the inner side wall of the feeding bin.

Further, a pressure switch is provided on the buffer bin.

Further, a rotary valve is provided on the delivery pipe.

Further, a filter screen is provided in the feeding bin; preferably, an air vibrator is provided on the filter screen.

Preferably, a clamp is provided at the feeding port of the feeding bin.

In the working state of this embodiment, the valve at the feeding port and the rotary valve are closed, the fan sucks the air in the buffer bin and the conveying pipe, adjusts the pressure switch, forms a negative pressure airflow lower than atmospheric pressure in the conveying pipe and the buffer chamber, and turns on the rotating valve. Valve, the material enters the feeding bin from the feeding port, the air pulse device compresses the air through the air knife to further cut, mix and break the bridge of the suspended material in the bin, the material passes through the filter screen and enters the buffer bin through the conveying pipe, and then passes through the The feeding port is ready to enter the next device for processing.

The beneficial effects of the utility model are:

The device adopts rotary valves, valves, pressure switches, fans and other devices to form negative pressure pneumatic conveying. Under the action of negative pressure, the material is easily sucked, reducing the flying powder and dust at the feeding port; the hopper can be opened to continuously feed materials and conveying; moisture is easy to evaporate under negative pressure, and materials can be dried at the same time.

An air pulse device is installed on the inner wall of the feeding bin, which can effectively break the bridge and solve the problem that the material particles are too small and easy to bridge and agglomerate; the generated gas can also better disperse and mix the suspended materials in the bin, improving the discharge efficiency; and can also Solve the problem of blockage of the filter hole caused by long-term use of the filter screen; compared with the traditional stirring device installed in the warehouse, the air pulse device hardly occupies the volume, and will not cause the material to adhere to the device and cause material loss. At the same time, the automation of the air pulse device can be realized by using the controller.

The air vibrator realizes the filtering of materials by vibrating the filter screen, and also prevents the screen from being clogged.

The strainer screen can filter out the particles that do not meet the processing conditions; the clamp can better fix the material when feeding and prevent deviation.

During pneumatic conveying, the gas velocity is high, and the setting of the buffer bin can buffer the material, making it easy to enter the next step of processing.

The pressure switch can effectively control the air pressure in the device and effectively improve the feeding efficiency.

The rotary valve can control whether the conveying pipe and the feeding bin are connected or not. When it is closed, the fan sucks the air in the conveying pipe and the buffer bin to reach the negative pressure condition faster and reduce energy consumption;

The utility model is especially suitable for feeding superfine particles, which is not easy to raise dust and bridge, and has a clean environment; sustainable and uniform feeding, large conveying capacity; low energy consumption, low noise; flexible pipeline layout, small footprint, and excellent performance .

Description of drawings

Accompanying drawing 1 is the structural representation of bentonite superfine grinding feeder.

Reference signs: feeding bin 1, air pulse device 2, air vibrator 3, rotary valve 4, delivery pipe 5, pressure switch 6, fan 7, buffer bin 8, feeding port 9, filter screen 10, fixture 11, Support frame 12, air pulse tube 21, nozzle 22, pulse valve 23, gas storage device 24.

Detailed ways

Embodiment one

A kind of bentonite ultra-fine powder feeder, comprising a feeding bin 1, a support frame 12 of a fixing device, a clamp 11, an air pulse device 2 arranged in the feeding bin, and a 200-mesh filter screen 10 arranged in the feeding bin 1 to filter An air vibrator 3 is installed at the bottom of the mesh screen 10; the feeding bin 1 and the buffer bin 8 are connected through the delivery pipe 5; the transfer pipe 5 is provided with a rotary valve 4; the buffer bin 8 is provided with a pressure switch 6 and a The fan 7 connected to the bin 8, the bottom of the buffer bin 8 is provided with a discharge port 9, and a valve is provided at the discharge port 9.

The air pulse device 2 comprises an air pulse tube 21, a plurality of nozzles 22 arranged on and communicated with the air pulse tube 21, the air pulse tube 21 communicates with an air storage device 24 arranged on the outer wall of the feeding bin 1 through a pulse valve 23, and the air pulse The pipe is arranged on the inner side wall at one-third of the total height of the feeding bin and the bottom side wall of the feeding bin; the pulse valve is connected with the controller arranged on the outer side wall of the feeding bin 1 to realize automatic control.

The working principle of this embodiment:

The valve at the feeding port 9 and the rotary valve 4 are closed, the fan 7 sucks the air in the buffer bin 8 and the delivery pipe 5, and the pressure switch 6 is adjusted to form a negative pressure airflow below atmospheric pressure in the delivery pipe 5 and the buffer bin 8 , open the rotary valve 4, the material enters the feeding bin 1 from the feeding port, the air pulse device 2 compresses the air through the air knife to further cut, mix and break the material suspended in the bin, and the material passes through the filter screen driven by the air vibrator 3 After the sieve 10, enter the buffer bin 8 through the delivery pipe 5, and then pass through the feeding port 9 to prepare to enter the next device for processing.

Embodiment two

A kind of bentonite ultra-fine powder feeder, comprising a feeding bin 1, a support frame 12 of a fixing device, a clamp 11, an air pulse device 2 arranged in the feeding bin, and a 200-mesh filter screen 10 arranged in the feeding bin 1 to filter An air vibrator 3 is installed at the bottom of the mesh screen 10; the feeding bin 1 is connected with the buffer bin 8 through the conveying pipe 5; , There is a valve at 9 places of the feeding port.

The air pulse device 2 comprises an air pulse tube 21, a plurality of nozzles 22 arranged on and communicated with the air pulse tube 21, the air pulse tube 21 communicates with an air storage device 24 arranged on the outer wall of the feeding bin 1 through a pulse valve 23, and the air pulse The pipe is arranged on the bottom side wall of the feeding bin; the pulse valve is connected with the controller arranged on the outer side wall of the feeding bin 1 to realize automatic control.

The working principle of this embodiment:

The valve at the feeding port 9 is closed, the fan 7 sucks the air inside the device, and a negative pressure airflow below atmospheric pressure is formed inside the device, and the material enters the feeding bin 1 from the feeding port, and the air pulse device 2 compresses the air through the air knife. The materials suspended in the warehouse are further cut, mixed and broken. The materials pass through the filter screen 10 driven by the air vibrator 3 and then enter the buffer warehouse 8 through the conveying pipe 5, and then enter the next device through the feeding port 9 for processing. .

The specific embodiments described herein are only examples to illustrate the spirit of the present invention. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the utility model or go beyond the appended claims defined range.

Claims (10)

1. A bentonite superfine grinding feeder, characterized in that it comprises a feeding bin (1), a buffer bin (8) communicated with the feeding bin through a delivery pipe (5), and the feeding bin (1) An air pulse device (2) is arranged inside, a fan (7) communicating with the buffer bin (8) is arranged on the buffer bin (8), and a discharge port (9) is arranged at the bottom of the buffer bin (8) ). 2. A bentonite ultra-fine powder feeder according to claim 1, characterized in that the air pulse device (2) includes an air pulse tube (21), which is arranged on the air pulse tube (21) And the nozzle (22) communicated with the air pulse tube (21), the air pulse tube (21) communicates with the gas storage device (24) arranged on the outer wall of the feeding bin (1) through the pulse valve (23). 3. A bentonite superfine grinding feeder according to claim 2, characterized in that the pulse valve (23) is connected to a controller. 4. A bentonite ultra-fine powder feeder according to claim 3, characterized in that the air pulse tube (21) is arranged in the middle and/or lower part of the feed bin (1). 5. A bentonite superfine grinding feeder according to claim 1, characterized in that a valve is arranged on the feeding port (9). 6. A bentonite superfine grinding feeder according to claim 5, characterized in that a pressure switch (6) is arranged on the buffer bin (8). 7. A bentonite superfine grinding feeder according to claim 6, characterized in that a rotary valve (4) is provided on the conveying pipe (5). 8 . The bentonite superfine powder feeding machine according to claim 1 , characterized in that, a filter screen ( 10 ) is arranged in the feeding bin ( 1 ). 9. A bentonite superfine grinding feeder according to claim 8, characterized in that an air vibrator (3) is arranged on the filter screen (10). 10. A bentonite ultra-fine powder feeder according to claim 9, characterized in that, a clamp (11) is provided at the feed inlet of the feed bin (1).