A cloth device
By designing a fabric device for coal-fired hot air furnace, the problem of uneven distribution of coal particles caused by gravity separation during coal particles is solved, and the efficiency of coal-fired use is improved and the stable operation of the combustion furnace is achieved.
Patent Information
- Application Number
- CN202420751338.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-10
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-04-10
AI Technical Summary
The existing coal-fired hot air furnace coal supply method causes coal particles to separate due to gravity, resulting in uneven distribution of the particle size of the coal seam, which in turn affects the combustion efficiency and the stable operation of the furnace.
A fabric device is designed, including a carrier frame, a fabric tube and a driving device. The fabric tube is placed between the cut-out port of the feeding pipe and the receiving silo. The driving device allows the bottom end of the fabric tube to rotate from above one end of the receiving silo to above the other end about the first axis to achieve uniform release of materials.
Through this fabric device, the uneven distribution of coal particles caused by gravity separation during coal particles can be effectively solved, the efficiency of coal burning is improved, and the stable operation of the combustion furnace can be promoted.
Smart Images

Figure CN222747301U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of material conveying, in particular to a material distribution device. Background Art
[0002] Coal-fired hot blast furnace is an important equipment in chemical production. It forms hot air through the combustion of coal and purification of high-temperature flue gas. The hot air directly contacts the wet material and takes away its moisture, thereby achieving the purpose of drying the product. The existing coal supply method is mostly fixed-point feeding, that is, the coal supply pipe is fixed above the coal bunker, and the coal drop point is fixed below the coal supply pipe. During the coal supply process, coal particles are separated by gravity, resulting in uneven distribution of coal seam particle size, that is, the lump coal coming out of the coal supply pipe is concentrated on both sides of the coal bunker, and the powdered coal is concentrated in the center of the coal bunker. The coal seam formed in the coal bunker is unevenly distributed along the width of the furnace, that is, there are more large pieces of coal in the coal seams on both sides of the coal bunker, the coal seams are loose, and the particle gaps are large, while the coal seams in the middle are small and have many coal scraps and are densely piled. After the coal enters the combustion furnace in layers, it causes incomplete coal combustion and low combustion efficiency, resulting in energy waste, and at the same time, it has an adverse effect on the stable operation of the combustion furnace. Utility Model Content
[0003] The utility model aims to provide a material distributing device to solve the problems existing in the above-mentioned prior art and to be able to evenly distribute materials.
[0004] To achieve the above purpose, the utility model provides the following solutions:
[0005] The utility model provides a material distributing device, comprising a supporting frame, a material distributing pipe and a driving device, wherein the material distributing pipe is used to be placed between a feeding port of a feeding pipe and a receiving bin, the top end of the material distributing pipe is open, and the top end of the material distributing pipe can be rotatably connected to the top of the supporting frame around a first axis, the bottom end of the material distributing pipe is open, and the bottom end of the material distributing pipe can be rotated around the first axis from above one end of the receiving bin to above the other end of the receiving bin, the driving device is transmission-connected to the material distributing pipe, and the driving device can provide power for the material distributing pipe to rotate around the first axis.
[0006] Preferably, the driving device includes a power device, a turntable and a connecting rod, the turntable is rotatably disposed on the carrier frame around a second axis, the first end of the connecting rod is hinged to the turntable, and the other end of the connecting rod is hinged to the fabric tube; the rotation of the turntable around the second axis can drive the connecting rod to pull the fabric tube to rotate around the first axis; the power device is in transmission connection with the turntable, and the power device can provide power for the turntable to rotate around the second axis.
[0007] Preferably, the driving device also includes a pin shaft group, which includes a pin shaft sleeve, a pin shaft, a first bearing, a blind cover, a bearing locking nut, a through cover and a pin shaft locking nut. The first end of the pin shaft is used to pass through the turntable. The pin shaft locking nut is threadedly connected to the first end of the pin shaft, and the pin shaft locking nut can lock and fix the pin shaft to the turntable; the two ends of the pin shaft sleeve are open, the blind cover is fixedly arranged at the first end of the pin shaft sleeve and can seal the first end opening of the pin shaft sleeve, the through cover is fixedly arranged at the second end of the pin shaft sleeve and can seal the second end opening of the pin shaft sleeve, and the through cover is provided with a Through hole, the first bearing is placed in the internal space of the pin sleeve, the outer ring of the first bearing is fixedly connected to the inner wall of the pin sleeve, the second end of the pin is used to pass through the through hole and enter the internal space of the pin sleeve, and pass through the first bearing, the outer wall of the second end of the pin is fixedly connected to the inner ring of the first bearing, the bearing locking nut is placed in the internal space of the pin sleeve, the bearing locking nut is threadedly connected to the second end of the pin, and the bearing locking nut can lock the inner ring of the first bearing on the pin; the first end of the connecting rod is fixedly connected to the blind cover or the pin sleeve.
[0008] Preferably, the driving device also includes a connecting shaft, a second bearing and a first bearing seat, the first bearing seat is fixedly disposed on the fabric tube, the outer ring of the second bearing is fixedly connected to the first bearing seat, the inner ring of the second bearing is fixedly sleeved on the connecting shaft, and the connecting shaft is fixedly connected to the second end of the connecting rod.
[0009] Preferably, it also includes a supporting device, which includes a suspension shaft, two third bearings and two second bearing seats, the two second bearing seats are fixed on the supporting frame, the outer ring of one third bearing is fixed on one second bearing seat, the outer ring of the other third bearing is fixed on the other second bearing seat, the inner rings of the two third bearings are respectively fixedly sleeved on the two ends of the suspension shaft, and the axis of the suspension shaft coincides with the first axis; the top end of the cloth tube is placed between the two third bearings, and the top end of the cloth tube is fixedly connected to the suspension shaft.
[0010] Preferably, the suspension shaft is placed directly above the center of the receiving bin.
[0011] Preferably, it also includes a spray water pipe, which is fixed on the fabric pipe and is used for spraying water.
[0012] Preferably, it also includes a solenoid valve, which is arranged on the spray water pipe and can control the on and off of the spray water pipe.
[0013] Preferably, the top opening of the distribution tube is larger than the bottom opening of the distribution tube, and the distribution tube has a tapered section, the inner wall of which gradually shrinks from the top end of the distribution tube to the bottom end of the distribution tube.
[0014] Compared with the prior art, the utility model has achieved the following technical effects:
[0015] The distribution device provided by the utility model is particularly suitable for supplying coal to a coal-fired hot blast furnace to solve the problem of uneven distribution of coal particles caused by gravity separation during the feeding process of coal particles, and can effectively improve the efficiency of coal use. A distribution pipe is arranged between the feeding port of the feeding pipe and the receiving bin. The top end of the distribution pipe is opened to receive the material released at the feeding port of the feeding pipe, and the bottom end of the distribution pipe is opened to release the material received by the distribution pipe to the receiving bin. The bottom end of the distribution pipe can rotate around the first axis from above one end of the receiving bin to above the other end of the receiving bin, and swing back and forth to evenly release the material received by the distribution pipe to the receiving bin, so that the material can be evenly discharged. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0017] Figure 1 A schematic diagram of the front view of the material distribution device provided by the utility model;
[0018] Figure 2 for Figure 1 A top view of the material distribution device in FIG.
[0019] Figure 3 for Figure 1 A cross-sectional view of a pin assembly in a material distribution device;
[0020] In the figure: 1-feeding pipe, 2-support device, 3-distributing pipe, 4-carrying frame, 5-turntable, 6-power device, 7-pin shaft group, 8-connecting rod, 9-first bearing seat, 10-spray water pipe, 11-receiving bin, 301-pin shaft sleeve, 302-pin shaft, 303-first bearing, 304-bolt, 305-blind cover, 306-bearing locking nut, 307-through cover, 308-pin shaft locking nut. DETAILED DESCRIPTION
[0021] 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.
[0022] The utility model aims to provide a material distributing device to solve the problems existing in the above-mentioned prior art and to be able to evenly distribute materials.
[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0024] like Figure 1-3 As shown, the utility model provides a material distributing device, including a supporting frame 4, a material distributing pipe 3 and a driving device, the material distributing pipe 3 is used to be placed between the unloading port of the feeding pipe 1 and the receiving bin 11, the top end of the material distributing pipe 3 is open, and the top end of the material distributing pipe 3 can be rotatably connected to the top of the supporting frame 4 around a first axis, the bottom end of the material distributing pipe 3 is open, and the bottom end of the material distributing pipe 3 can be rotated around the first axis from above one end of the receiving bin 11 to above the other end of the receiving bin 11, the driving device is transmission-connected to the material distributing pipe 3, and the driving device can provide power for the material distributing pipe 3 to rotate around the first axis.
[0025] The distribution device provided by the utility model is particularly suitable for supplying coal to a coal-fired hot blast furnace to solve the problem of uneven distribution of coal particles caused by gravity separation during the feeding process of coal particles, and can effectively improve the efficiency of coal use. A distribution pipe 3 is arranged between the feeding port of the feeding pipe 1 and the receiving bin 11. The top end of the distribution pipe 3 is opened to receive the material released at the feeding port of the feeding pipe 1, and the bottom end of the distribution pipe 3 is opened to release the material received by the distribution pipe 3 to the receiving bin 11. The bottom end of the distribution pipe 3 can rotate around the first axis from above one end of the receiving bin 11 to above the other end of the receiving bin 11, and swing back and forth to evenly release the material received by the distribution pipe 3 to the receiving bin 11, so that the material can be evenly discharged.
[0026] As a more preferred implementation of this embodiment, the driving device includes a power device 6, a turntable 5 and a connecting rod 8. The turntable 5 is rotatably arranged on the carrier 4 around the second axis. The first end of the connecting rod 8 is hinged on the turntable 5, and the other end of the connecting rod 8 is hinged on the fabric pipe 3; the rotation of the turntable 5 around the second axis can drive the connecting rod 8 to pull the fabric pipe 3 to rotate around the first axis; the power device 6 is transmission-connected to the turntable 5, and the power device 6 can provide power for the turntable 5 to rotate around the second axis. It has a compact structure, stable operation, easy installation and maintenance, and low maintenance cost; it should be noted that the power device 6 is preferably but not limited to a conventional power device 6 such as a motor and a reducer; wherein the first end of the connecting rod 8 is rotated around the second axis. The rotation diameter of the second axis directly determines the stroke of the connecting rod 8 during operation and the swing angle of the fabric pipe 3. The rotation diameter of the first end of the connecting rod 8 rotating around the second axis is directly proportional to the stroke of the connecting rod 8 and the swing angle of the fabric pipe 3. Assuming that the vertical distance from the first axis to the upper surface of the receiving bin 11 is A, the horizontal distance from the first axis to the upper surface of the receiving bin 11 is B, and the vertical distance from the first axis to the second axis is C, the required swing angle θ of the fabric pipe 3 is calculated by the inverse trigonometric function θ=arctanB / A, and then the rotation diameter of the first end of the connecting rod 8 rotating around the second axis is calculated by the trigonometric function 2×tanθ×C, wherein θ is the unilateral swing angle of the fabric pipe 3 from the vertical to the left or to the right.
[0027] As a more preferred implementation manner of this embodiment, the driving device also includes a pin shaft group 7, which includes a pin shaft sleeve 301, a pin shaft 302, a first bearing 303, a cover 305, a bearing locking nut 306, a through cover 307 and a pin shaft locking nut 308. The first end of the pin shaft 302 is used to pass through the turntable 5, and the pin shaft locking nut 308 is threadedly connected to the first end of the pin shaft 302. The pin shaft locking nut 308 can lock and fix the pin shaft 302 to the turntable 5; the two ends of the pin shaft sleeve 301 are open, the cover 305 is fixedly arranged at the first end of the pin shaft sleeve 301 and can seal the first end opening of the pin shaft sleeve 301, the through cover 307 is fixedly arranged at the second end of the pin shaft sleeve 301 and can seal the second end opening of the pin shaft sleeve 301, and a through hole is provided on the through cover 307 The first bearing 303 is placed in the internal space of the pin sleeve 301, the outer ring of the first bearing 303 is fixedly connected to the inner wall of the pin sleeve 301, the second end of the pin 302 is used to pass through the through hole and enter the internal space of the pin sleeve 301, and pass through the first bearing 303, the outer wall of the second end of the pin 302 is fixedly connected to the inner ring of the first bearing 303, the bearing locking nut 306 is placed in the internal space of the pin sleeve 301, the bearing locking nut 306 is threadedly connected to the second end of the pin 302, and the bearing locking nut 306 can lock the inner ring of the first bearing 303 on the pin 302; the first end of the connecting rod 8 is fixedly connected to the blind cover 305 or the pin sleeve 301, and the blind cover 305 is preferably but not limited to being fixed to the first end of the pin sleeve 301 by bolts 304.
[0028] As a more preferred implementation scheme of this embodiment, the driving device also includes a connecting shaft, a second bearing and a first bearing seat 9. The first bearing seat 9 is fixed on the fabric tube 3, the outer ring of the second bearing is fixedly connected to the first bearing seat 9, the inner ring of the second bearing is fixedly sleeved on the connecting shaft, and the connecting shaft is fixedly connected to the second end of the connecting rod 8. The structure is simple and the connection is stable.
[0029] As a more preferred implementation manner of this embodiment, the cloth device provided by the utility model also includes a supporting device 2, which includes a suspension shaft, two third bearings and two second bearing seats, the two second bearing seats are fixed on the carrier frame 4, the outer ring of a third bearing is fixed on a second bearing seat, the outer ring of the other third bearing is fixed on the other second bearing seat, the inner rings of the two third bearings are respectively fixedly sleeved on both ends of the suspension shaft, and the axis of the suspension shaft coincides with the first axis; the top end of the cloth pipe 3 is placed between the two third bearings, and the top end of the cloth pipe 3 is fixedly connected to the suspension shaft, with a simple structure and stable support.
[0030] As a more preferred implementation of this embodiment, the suspension shaft is placed just above the center of the receiving bin 11 to facilitate uniform distribution of materials on the receiving bin 11 during material distribution.
[0031] Furthermore, the material distribution device provided by the utility model also includes a spray water pipe 10, which is fixed on the material distribution pipe 3. The spray water pipe 10 is used for spraying water. When the material falls into the receiving bin 11 through the material distribution pipe 3, dust will be generated, which will deteriorate the on-site working environment and cause material waste. Increasing the spraying water during work will suppress the generation of dust.
[0032] Furthermore, the material distribution device provided by the utility model also includes a solenoid valve, which is arranged on the spray water pipe 10. The solenoid valve can control the on and off of the spray water pipe 10. As a more preferred implementation scheme of this embodiment, the solenoid valve is interlocked with the driving device, that is, when the driving device starts running, the solenoid valve opens, and water is sprayed out through the end nozzle; when the driving device stops running, the solenoid valve closes to block water from entering the device.
[0033] As a more preferred implementation manner of the present embodiment, the top opening of the distribution tube 3 is larger than the bottom opening of the distribution tube 3, and the distribution tube 3 has a tapered section. The inner wall of the tapered section gradually shrinks from the top direction of the distribution tube 3 toward the bottom direction of the distribution tube 3. The distribution tube 3 is in a "Y" shape as a whole. The upper trumpet mouth can completely receive the upper material flow, reduce the loss of the material flow in the falling process, and the lower part becomes smaller to facilitate the control of the landing point of the material.
[0034] The material distribution device provided by the utility model has the following specific implementation process: before feeding, the driving device is turned on, and after the motor is energized, the reducer drives the turntable 5 to make a circular motion, the electromagnetic valve at the rear end of the spray water pipe 10 is opened, and the nozzle continuously sprays mist water droplets into the material distribution pipe 3. During feeding, the material enters the upper opening of the material distribution pipe 3 through the feeding pipe 1 and moves downward under the action of gravity. The material distribution pipe 3 is pulled and pushed by the turntable 5 and the connecting rod 8. At the same time, the material is guided to enter different positions of the receiving bin 11 during the swinging process of the material distribution pipe 3. When the material in the receiving bin 11 meets the demand, the discharger at the upper end of the feeding pipe 1 is opened to prevent the feeding pipe 1 from entering without material, the motor stops working, the electromagnetic valve of the spray water pipe 10 is closed, and the entire material distribution work is completed.
[0035] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of the present invention. At the same time, for those skilled in the art, according to the idea of the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.
Claims
1. A material distribution device, characterized in that: It includes a supporting frame, a distribution pipe and a driving device. The distribution pipe is used to be placed between the discharge port of the feeding pipe and the receiving bin. The top end of the distribution pipe is open, and the top end of the distribution pipe can be rotatably connected to the top of the supporting frame around a first axis. The bottom end of the distribution pipe is open, and the bottom end of the distribution pipe can be rotated around the first axis from above one end of the receiving bin to above the other end of the receiving bin. The driving device is transmission-connected to the distribution pipe, and the driving device can provide power for the distribution pipe to rotate around the first axis.
2. The material distribution device according to claim 1, characterized in that: The driving device includes a power device, a turntable and a connecting rod. The turntable is rotatably arranged on the supporting frame around a second axis. The first end of the connecting rod is hinged on the turntable, and the other end of the connecting rod is hinged on the fabric tube. The rotation of the turntable around the second axis can drive the connecting rod to pull the fabric tube to rotate around the first axis. The power device is in transmission connection with the turntable, and the power device can provide power for the turntable to rotate around the second axis.
3. The material distribution device according to claim 2, characterized in that: The driving device also includes a pin shaft group, which includes a pin shaft sleeve, a pin shaft, a first bearing, a blind cover, a bearing locking nut, a through cover and a pin shaft locking nut. The first end of the pin shaft is used to pass through the turntable. The pin shaft locking nut is threadedly connected to the first end of the pin shaft, and the pin shaft locking nut can lock and fix the pin shaft to the turntable; the two ends of the pin shaft sleeve are open, the blind cover is fixedly arranged at the first end of the pin shaft sleeve and can seal the first end opening of the pin shaft sleeve, the through cover is fixedly arranged at the second end of the pin shaft sleeve and can seal the second end opening of the pin shaft sleeve, and a through hole is opened on the through cover The first bearing is placed in the internal space of the pin sleeve, the outer ring of the first bearing is fixedly connected to the inner wall of the pin sleeve, the second end of the pin shaft is used to pass through the through hole and enter the internal space of the pin sleeve, and pass through the first bearing, the outer wall of the second end of the pin shaft is fixedly connected to the inner ring of the first bearing, the bearing locking nut is placed in the internal space of the pin sleeve, the bearing locking nut is threadedly connected to the second end of the pin shaft, and the bearing locking nut can lock the inner ring of the first bearing on the pin shaft; the first end of the connecting rod is fixedly connected to the blind cover or the pin sleeve.
4. The material distribution device according to claim 2, characterized in that: The driving device also includes a connecting shaft, a second bearing and a first bearing seat. The first bearing seat is fixedly arranged on the fabric tube, the outer ring of the second bearing is fixedly connected to the first bearing seat, the inner ring of the second bearing is fixedly sleeved on the connecting shaft, and the connecting shaft is fixedly connected to the second end of the connecting rod.
5. The material distribution device according to claim 1, characterized in that: It also includes a supporting device, which includes a suspension shaft, two third bearings and two second bearing seats, the two second bearing seats are fixed on the supporting frame, the outer ring of one third bearing is fixed on one second bearing seat, the outer ring of the other third bearing is fixed on the other second bearing seat, the inner rings of the two third bearings are respectively fixedly sleeved on both ends of the suspension shaft, and the axis of the suspension shaft coincides with the first axis; the top end of the distribution tube is placed between the two third bearings, and the top end of the distribution tube is fixedly connected to the suspension shaft.
6. The material distribution device according to claim 5, characterized in that: The suspension shaft is placed just above the center of the receiving bin.
7. The material distribution device according to claim 1, characterized in that: It also includes a spray water pipe, which is fixed on the material distribution pipe and is used for spraying water.
8. The material distribution device according to claim 7, characterized in that: It also includes a solenoid valve, which is arranged on the spray water pipe and can control the on and off of the spray water pipe.
9. The material distribution device according to claim 1, characterized in that: The top opening of the distribution tube is larger than the bottom opening of the distribution tube. The distribution tube has a tapered section, and the inner wall of the tapered section gradually shrinks from the top end of the distribution tube to the bottom end of the distribution tube.