Composite pulverized coal proportioning equipment capable of controlling proportioning

Abstract

The utility model discloses composite pulverized coal proportioning equipment capable of controlling proportioning, which comprises a pulverized coal tank, a feeding barrel is arranged below the pulverized coal tank, the surface of the feeding barrel is connected with a blanking tank, a proportioning tank is arranged in the pulverized coal tank, a mixing auger is arranged in the proportioning tank, and a mixing screw is arranged in the mixing auger. A belt scale is installed on one side of the upper end of the proportioning tank, a sleeve is installed in the discharging tank, a conical opening is formed in the lower end of the sleeve, a connecting frame is installed in the discharging tank, and a hoisting spring is connected to the surface of the connecting frame; the proportioning tanks are provided with the belt weighers, the belt weighers are used for weighing and proportioning materials, after weighing is completed, the belt weighers are used for feeding the materials into the proportioning tanks, the mixing augers in the proportioning tanks are used for stirring and mixing, and the proportioning tanks are arranged in multiple groups, so that the proportioning quantity can be increased, and the proportioning efficiency of pulverized coal is improved; one group of proportioning tanks and one group of blanking tanks are connected with each other, and the blanking tanks are used for blanking the pulverized coal.

Description

Technical Field

[0001] The utility model relates to the technical field of kiln systems, in particular to composite coal powder proportioning equipment with controllable proportioning. Background Art

[0002] When the cement kiln is calcining cement clinker, coal powder is added as fuel for combustion. Controlling the proportion of coal powder can improve the combustion efficiency of coal powder, thereby avoiding waste of resources and improving the quality of cement products. When mixing coal powder, calcium materials, silicon materials, iron materials and aluminum materials are added to improve the combustion quality of coal powder by controlling the proportion.

[0003] The existing coal powder proportioning equipment is not conducive to quantitative feeding during the proportioning process, so that the feeding amount after proportioning is not uniform, which easily causes the coal powder proportioning ratio to be unbalanced.

[0004] Therefore, those skilled in the art provide a composite coal powder proportioning device with controllable proportioning to solve the problems raised in the above background technology. Utility Model Content

[0005] The utility model aims to provide a composite coal powder proportioning device with controllable proportioning, so as to solve the problem of uneven material feeding of the existing coal powder proportioning device mentioned in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A composite coal powder proportioning device with controllable proportioning comprises: a coal powder tank, a feeding barrel is installed below the coal powder tank, and a feeding tank is connected to the surface of the feeding barrel, a proportioning tank is installed inside the coal powder tank, and a mixing auger is installed inside the proportioning tank, a belt scale is installed on one side of the upper end of the proportioning tank, a sleeve is installed inside the feeding tank, and a conical opening is provided at the lower end of the sleeve, a connecting frame is installed inside the feeding tank, and a hanging spring is connected to the surface of the connecting frame, an auger shaft is installed inside the feeding barrel, and an auger is provided on the surface of the auger shaft.

[0008] As a further solution of the utility model, the lower end of the proportioning tank is connected to a connecting pipe, and the lower end of the connecting pipe is connected to an inlet pipe, and a discharge valve is installed between the connecting pipe and the inlet pipe.

[0009] As a further solution of the present invention, the proportioning tank is connected to the discharge tank through a connecting pipe and an inlet pipe, and the proportioning tank and the discharge tank are arranged in a one-to-one correspondence.

[0010] As a further solution of the present invention, the connecting frame is connected to the inner top of the discharge tank through a hanging spring, and the inner diameter of the discharge tank is consistent with the outer diameter of the sleeve.

[0011] As a further solution of the present invention, the sleeve is elastically connected to the discharge tank via a hanging spring, and the interior of the discharge tank and the conical opening are interconnected.

[0012] As a further solution of the present invention, a motor is installed at one end of the auger shaft, and the output end of the feed barrel is connected to a kiln head.

[0013] As a further solution of the present invention, the augers are arranged equidistantly along the surface of the augers shaft, the spacing between adjacent augers is equal, and the feed barrel and the augers shaft are arranged at an inclination of 40 degrees.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. A belt scale is installed on the proportioning tank, and the belt scale is used to weigh the materials to control the proportion. After weighing, the belt scale is used to send the materials into the proportioning tank, and the mixing auger inside the proportioning tank is used to stir and mix. There are multiple groups of proportioning tanks, which can increase the number of proportions and improve the proportioning efficiency of coal powder. A group of proportioning tanks is connected to a group of feeding tanks, and the coal powder is fed through the feeding tanks. A group of feeding tanks corresponds to a group of augers on the auger shaft, and the pulverized coal is transported at intervals by equidistantly distributed augers, thereby realizing the quantitative and constant speed feeding of coal powder.

[0016] 2. A sleeve is set inside the discharge tank. When the discharge valve is opened, the coal powder enters the sleeve. As the weight continues to increase, the sleeve will fall along the inner wall of the discharge tank until the conical opening is offset from the inner wall of the discharge tank and no longer fits the inner wall of the discharge tank. Then, the coal powder enters the feeding barrel. After the weight is reduced, the sleeve re-enters the discharge tank under the elastic force of the lifting spring, which is conducive to quantitative and uniform discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure is a schematic diagram of the structure of a composite coal powder proportioning device with controllable proportioning.

[0018] Figure 2 The present invention is a schematic diagram of the structure of a proportioning tank in a composite coal powder proportioning device with controllable proportioning.

[0019] Figure 3 The diagram is a schematic diagram of the split structure of the feed tank in a composite coal powder proportioning device with controllable proportioning.

[0020] Figure 4The present invention is a schematic diagram of the structure of an auger shaft in a composite coal powder proportioning device with controllable proportioning.

[0021] In the figure: 1. Pulverized coal tank; 2. Feeding barrel; 3. Discharging tank; 4. Kiln head; 5. Motor; 6. Inlet pipe; 7. Connecting pipe; 8. Proportioning tank; 9. Mixing auger; 10. Belt scale; 11. Sleeve; 12. Conical opening; 13. Connecting frame; 14. Lifting spring; 15. Auger shaft; 16. Auger; 17. Discharge valve. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1 to Figure 4 The embodiment of the utility model provides a composite coal powder proportioning device with controllable proportioning, including: a coal powder tank 1, a feeding cylinder 2 is installed below the coal powder tank 1, and a feeding tank 3 is connected to the surface of the feeding cylinder 2, a proportioning tank 8 is installed inside the coal powder tank 1, and a mixing auger 9 is installed inside the proportioning tank 8, a belt scale 10 is installed on one side of the upper end of the proportioning tank 8, a connecting pipe 7 is connected to the lower end of the proportioning tank 8, and an inlet pipe 6 is connected to the lower end of the connecting pipe 7, a discharge valve 17 is installed between the connecting pipe 7 and the inlet pipe 6, the proportioning tank 8 is connected to the feeding tank 3 through the connecting pipe 7 and the inlet pipe 6, and the proportioning tank 8 and the feeding tank 3 are arranged one by one;

[0024] Specifically, the materials are weighed and proportioned using a belt scale 10 installed on the proportioning tank 8, and then mixed and stirred inside the proportioning tank 8. The lower end of the proportioning tank 8 is connected to the connecting pipe 7, and the connecting pipe 7 is interconnected with the inlet pipe 6. The discharge is controlled by the unloading valve 17. A group of proportioning tanks 8 corresponds to a group of discharge tanks 3. While increasing the proportioning quantity, the discharge is evenly separated to avoid imbalance in the proportions.

[0025] A sleeve 11 is installed inside the unloading tank 3, and a conical opening 12 is provided at the lower end of the sleeve 11, a connecting frame 13 is installed inside the unloading tank 3, and a hanging spring 14 is connected to the surface of the connecting frame 13, an auger shaft 15 is installed inside the feeding tube 2, and an auger 16 is provided on the surface of the auger shaft 15, a motor 5 is installed at one end of the auger shaft 15, and a kiln head 4 is connected to the output end of the feeding tube 2, the connecting frame 13 is connected to the inner top of the unloading tank 3 through the hanging spring 14, the inner diameter of the unloading tank 3 is consistent with the outer diameter of the sleeve 11, the sleeve 11 is elastically connected to the unloading tank 3 through the hanging spring 14, and the inside of the unloading tank 3 and the conical opening 12 are connected to each other, the auger 16 is equidistantly arranged along the surface of the auger shaft 15, the spacing between adjacent auger 16 is equal, and the feeding tube 2 and the auger shaft 15 are inclined at 40 degrees;

[0026] Specifically, after opening the discharge valve 17, the material enters the sleeve 11 inside the discharge tank 3. As the weight continues to increase, the sleeve 11 falls. When the conical opening 12 of the sleeve 11 is exposed from the bottom of the discharge tank 3, the material will flow out and enter the interior of the feeding barrel 2. A group of discharge tanks 3 corresponds to the auger 16 of one section inside the feeding barrel 2, and the pulverized coal is transported at intervals by using equidistantly distributed augers, thereby realizing quantitative and constant-speed discharge of the pulverized coal.

[0027] The working principle of the utility model is:

[0028] When using the utility model, the belt scale 10 installed on the proportioning tank 8 is used to weigh and proportion the materials, and then the mixing auger 9 is used to mix and stir the materials inside the proportioning tank 8. After stirring and mixing, the discharge valve 17 is opened, and the materials enter the inlet pipe 6 along the connecting pipe 7 and enter the discharge tank 3 through the inlet pipe 6. Secondly, the materials enter the sleeve 11 inside the discharge tank 3. As the weight continues to increase, the hanging spring 14 is stretched, and then the sleeve 11 falls. When the tapered opening 12 of the sleeve 11 is exposed from the bottom of the discharge tank 3, the materials will flow out and enter the interior of the feeding barrel 2. A group of discharge tanks 3 corresponds to the auger 16 of one section inside the feeding barrel 2, and the feeding The barrel 2 and the auger shaft 15 are arranged inclined to allow the material to fall into one section of the auger 16, and the material is pushed forward by the rotation of the auger shaft 15 and the auger 16. Since the augers 16 are arranged at intervals, the first group of augers 16 pushes the material out of the discharge port. Under the inclined structure of the inclined feeding barrel 2, the material in the subsequent section of the auger 16 will be advanced forward, thereby achieving staggered discharge of the material to avoid excessive concentration of discharge, resulting in excessive addition and incomplete combustion of coal powder. Secondly, after the coal powder enters the feeding barrel 2 and the weight is reduced, the sleeve 11 re-enters the discharge tank 3 under the elastic force of the lifting spring 14 to continue the next round of proportioning and discharge.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A composite coal powder proportioning device with controllable proportioning, characterized in that: include: A pulverized coal tank (1), wherein a feeding barrel (2) is installed below the pulverized coal tank (1), and a feeding tank (3) is connected to the surface of the feeding barrel (2), a proportioning tank (8) is installed inside the pulverized coal tank (1), and a mixing auger (9) is installed inside the proportioning tank (8), a belt scale (10) is installed on one side of the upper end of the proportioning tank (8), a sleeve (11) is installed inside the feeding tank (3), and a conical opening (12) is provided at the lower end of the sleeve (11), a connecting frame (13) is installed inside the feeding tank (3), and a hanging spring (14) is connected to the surface of the connecting frame (13), an auger shaft (15) is installed inside the feeding barrel (2), and an auger (16) is provided on the surface of the auger shaft (15).

2. The composite coal powder proportioning equipment with controllable proportioning according to claim 1 is characterized in that: The lower end of the proportioning tank (8) is connected to a connecting pipe (7), and the lower end of the connecting pipe (7) is connected to an inlet pipe (6), and a discharge valve (17) is installed between the connecting pipe (7) and the inlet pipe (6).

3. The composite coal powder proportioning equipment with controllable proportioning according to claim 1, characterized in that: The proportioning tank (8) is connected to the material discharge tank (3) via a connecting pipe (7) and an inlet pipe (6), and the proportioning tank (8) and the material discharge tank (3) are arranged in a one-to-one correspondence.

4. The composite coal powder proportioning equipment with controllable proportioning according to claim 1, characterized in that: The connecting frame (13) is connected to the inner top of the material discharge tank (3) via a hanging spring (14), and the inner diameter of the material discharge tank (3) is consistent with the outer diameter of the sleeve (11).

5. The composite coal powder proportioning equipment with controllable proportioning according to claim 4 is characterized in that: The sleeve (11) is elastically connected to the discharge tank (3) via a hanging spring (14), and the interior of the discharge tank (3) and the conical opening (12) are in communication with each other.

6. The composite coal powder proportioning equipment with controllable proportioning according to claim 1, characterized in that: A motor (5) is installed at one end of the auger shaft (15), and a kiln head (4) is connected to the output end of the feed tube (2).

7. The composite coal powder proportioning equipment with controllable proportioning according to claim 1, characterized in that: The augers (16) are arranged equidistantly along the surface of the augers shaft (15), the spacing between adjacent augers (16) is equal, and the feeding cylinder (2) and the augers shaft (15) are arranged at an inclination of 40 degrees.

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