Quantitative feeding device

Abstract

The utility model discloses a quantitative feeding device which is arranged on the outer side of a combustion tower and comprises a feeding hopper and a dispersing pipe, the output end of the feeding hopper extends into an input port of the combustion tower, the dispersing pipe is obliquely arranged at the output end of the feeding hopper, one end of the dispersing pipe extends into the output end of the feeding hopper, and the other end of the dispersing pipe is connected with an external air source. And the dispersing pipe is used for crushing materials. According to the utility model, compressed air at an inclined angle can be introduced through the inclined dispersing pipe, so that not only can materials be dispersed and are generally uniformly dispersed into smaller particles, but also the falling of the dispersed materials can be accelerated, and the uniformity of the materials is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of microsphere feeding equipment in explosion production, and more particularly to a quantitative feeding device. Background Art

[0002] In the process of producing microspheres by exploding quartz sand, fine-grained quartz sand is added from the top of the combustion tower. The combustion tower heats the quartz sand. After high-temperature heating, the quartz sand explodes to produce fine microspheres. In previous production, after the quartz sand was added from the top of the combustion tower, it was not dispersed and fell to the bottom of the tower in a "waterfall" shape. The combustion tower only heated the quartz sand on the surface of the "waterfall" to the temperature required for explosion, so that the quartz sand exploded, while the quartz sand inside the "waterfall" was not heated sufficiently and could not reach the explosion temperature, and directly fell to the bottom of the tower. Eventually, only a small part of the raw materials exploded to produce microspheres.

[0003] When feeding from the top of the combustion tower, quantitative and continuous feeding is required. In order to improve production efficiency and raw material utilization rate, it is necessary to make full use of the furnace cross-section and evenly disperse the materials throughout the furnace. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is how to achieve uniformly dispersed feeding.

[0005] The utility model solves the above technical problems through the following technical means: a quantitative feeding device is arranged outside the combustion tower, including a feeding hopper and a dispersion pipe. The output end of the feeding hopper extends into the input port of the combustion tower. An inclined dispersion pipe is arranged on the output end of the feeding hopper. One end of the dispersion pipe extends into the output end of the feeding hopper, and the other end is connected to an external air source. The dispersion pipe is used for crushing materials.

[0006] As a preferred technical solution, the dispersion pipe includes a Venturi tube.

[0007] As a preferred technical solution, a feeding pipe communicating with the feeding hopper is fixedly connected to the output end of the feeding hopper, and one end of the dispersion pipe extends into the feeding pipe.

[0008] As a preferred technical solution, the dispersion pipe is inclined downward with respect to the output end of the feeding hopper.

[0009] As a preferred technical solution, the included angle between the dispersion pipe and the output end of the feeding hopper is 45°.

[0010] As a preferred technical solution, it further includes a storage bin, a discharging valve, and a quantitative feeder arranged upstream of the feeding hopper. A discharging valve is arranged at the output end of the storage bin. The outlet of the discharging valve is located above the input end of the quantitative feeder. The output end of the quantitative feeder is located above the input end of the feeding hopper.

[0011] As a preferred technical solution, an air compressor and an air purifier are further provided on the connecting pipeline between the dispersion pipe and the external air source.

[0012] As a preferred technical solution, the bottom end of the feeding pipe is arranged in a flared shape.

[0013] As a preferred technical solution, the output end of the metering feeder is coaxial with the axis of the feeding hopper.

[0014] As a preferred technical solution, the output end of the feeding pipe extends below the plane where the top opening of the combustion tower is located.

[0015] The beneficial effects of the present utility model are as follows:

[0016] (1) In the present utility model, through the inclined dispersion pipe, compressed air at an inclined angle can be introduced, which can not only disperse the material, making it generally evenly dispersed into smaller particles, but also accelerate the falling of the dispersed material, improving the uniformity of the material.

[0017] (2) In the present utility model, the material is weighed by the metering feeder and compared with the set amount. When the weighing of the feeder is greater than or less than the set amount, an electrical signal is sent to the variable-frequency rotary discharge valve to adjust the motor speed and reduce or increase the feeding amount. Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the present utility model;

[0019] Figure 2 It is a schematic diagram of the sectional structure of the dispersion pipe provided by an embodiment of the present utility model;

[0020] Reference numerals in the drawings: 1, silo; 2, discharge valve; 3, metering feeder; 4, feeding hopper; 5, air purifier; 6, combustion tower; 7, dispersion pipe; 8, feeding pipe. Detailed Embodiments

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] Refer to Figure 1, a quantitative feeding device comprises a silo 1, a discharge valve 2, a quantitative feeder 3, a feeding hopper 4, an air purifier 5, a combustion tower 6, a dispersion pipe 7, a discharge pipe 8, and a controller, wherein the silo 1, the discharge valve 2, and the quantitative feeder 3 are sequentially arranged upstream of the feeding hopper 4, a discharge valve 2 is arranged at the output end of the silo 1, the outlet of the discharge valve 2 is located above the input end of the quantitative feeder 3, and the output end of the quantitative feeder 3 is located above the input end of the feeding hopper 4. In this embodiment, the output end of the quantitative feeder 3 is coaxial with the axis of the feeding hopper 4, that is, it is located directly above the input end of the feeding hopper 4, the controller is electrically connected to the discharge valve 2 and the quantitative feeder 3, the discharge valve 2, the quantitative feeder 3 are electrically connected to the feed hopper 4, and the discharge valve 2, the quantitative feeder 3 are electrically connected to the feed hopper 4. The quantitative feeders 3 are all commercially available parts, among which the discharge valve 2 can be a rotary feeding valve or a rotary discharge valve, that is, the valve core is transmission-connected to the output end of the valve driving motor, and the angle of the valve core is controlled by the rotation of the driving motor, thereby controlling the feeding amount. The quantitative feeder 3 can be a belt scale, and the material is weighed by the quantitative feeder 3 and compared with the set amount. In this embodiment, the discharge valve 2 is a variable frequency rotary discharge valve. When the quantitative feeder 3 weighs more than the set amount, it is transmitted to the variable frequency rotary discharge valve through an electrical signal, and the motor speed is adjusted to reduce the discharge amount. When the quantitative feeder 3 weighs less than the set amount, it is transmitted to the variable frequency rotary discharge valve through an electrical signal, and the motor speed is adjusted to increase the discharge amount.

[0023] See also Figure 1 The silo 1, the discharge valve 2, the quantitative feeder 3, and the hopper 4 are all located outside the combustion tower 6. The output end of the hopper 4 extends into the input port of the combustion tower 6. A dispersion pipe 7 is provided on the output end of the hopper 4, which is inclined downward. The output end of the hopper 4 is fixedly connected with a feed pipe 8 connected to the hopper 4. One end of the dispersion pipe 7 extends into the feed pipe 8, and the other end is connected to an external air source. The dispersion pipe 7 is used to crush the material. The dispersion pipe 7 can not only introduce compressed air at an inclined angle into the feed pipe 8, but also disperse the material to make it roughly evenly dispersed into smaller particles, but also accelerate the falling of the dispersed material, thereby improving the uniformity of the material.

[0024] It should be noted that, in this embodiment, the angle between the dispersion pipe 7 and the output end of the feeding hopper 4 is an acute angle, such as 45°, and of course it can be other angles, such as 30°, 60°, etc., and is not limited thereto. Figure 2 The dispersion tube 7 is a venturi tube, which is a commercially available part.

[0025] See also Figure 1 The bottom end of the feed pipe 8 is horn-shaped and extends into the area below the plane where the top opening of the combustion tower 6 is located. An air compressor and an air purifier 5 are also provided on the connecting pipeline between the dispersion pipe 7 and the external air source. The compressor is used to introduce the gas from the external air source into the dispersion pipe 7, and the air purifier 5 is used to purify the air.

[0026] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A quantitative feeding device, arranged outside the combustion tower (6), characterized in that: The invention comprises a feeding hopper (4) and a dispersion pipe (7). The output end of the feeding hopper (4) extends to the input port of a combustion tower (6). The output end of the feeding hopper (4) is provided with an inclined dispersion pipe (7). One end of the dispersion pipe (7) extends into the output end of the feeding hopper (4), and the other end is connected to an external air source. The dispersion pipe (7) is used for crushing materials.

2. The quantitative feeding device according to claim 1, characterized in that: The dispersion pipe (7) comprises a venturi tube.

3. The quantitative feeding device according to claim 1, characterized in that: The output end of the feeding hopper (4) is fixedly connected with a feeding pipe (8) which is in communication with the feeding hopper (4), and one end of the dispersion pipe (7) extends into the feeding pipe (8).

4. The quantitative feeding device according to claim 1, characterized in that: The dispersion pipe (7) and the output end of the feeding hopper (4) are arranged to be inclined downward.

5. The quantitative feeding device according to claim 1, characterized in that: The angle between the dispersion pipe (7) and the output end of the feeding hopper (4) is 45°.

6. The quantitative feeding device according to claim 1, characterized in that: It also comprises a silo (1), a discharge valve (2) and a quantitative feeder (3) arranged upstream of the hopper (4); the discharge valve (2) is arranged at the output end of the silo (1); the outlet of the discharge valve (2) is located above the input end of the quantitative feeder (3); and the output end of the quantitative feeder (3) is located above the input end of the hopper (4).

7. The quantitative feeding device according to claim 1, characterized in that: An air compressor and an air purifier (5) are also provided on the connection pipeline between the dispersion pipe (7) and the external air source.

8. The quantitative feeding device according to claim 3, characterized in that: The bottom end of the feeding pipe (8) is arranged in a trumpet shape.

9. The quantitative feeding device according to claim 6, characterized in that: The output end of the quantitative feeder (3) is coaxial with the axis of the feeding hopper (4).

10. The quantitative feeding device according to claim 3, characterized in that: The output end of the feed pipe (8) extends below the plane where the top opening of the combustion tower (6) is located.

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