Coal sorting device
By introducing a buffer box into the cyclone to reduce the bottom flow, the problem of wear of the cyclone slurry is solved, and the long life and efficient sorting of the equipment are achieved.
Patent Information
- Application Number
- CN202422181907.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-05
AI Technical Summary
During the peat sorting process of existing cyclones, the sinking spoons are frequently repaired due to severe wear, which affects production continuity and sorting efficiency.
A coal material sorting device is designed, including a cyclone body and a buffer box. The bottom flow of the cyclone is diverted into two streams of water through the buffer box and makes them flush and slow down each other, reduce the flow rate, and reduce the wear of medium coal particles on the discharge pipe.
It effectively reduces the wear of the discharge pipe by the medium coal particles, extends the service life of the equipment, improves the sorting efficiency and reduces noise, and ensures the continuous operation of the cyclone.
Smart Images
Figure CN223113293U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sorting equipment, in particular to a coal sorting device. Background Art
[0002] Peat is an important natural energy source. It is formed by the accumulation of incompletely decomposed plant debris in an oxygen-deficient environment. As an organic fuel, peat is widely used in energy, chemical and other production fields. In order to improve the quality of peat, sorting is a key link in the peat processing process.
[0003] Peat sorting uses a cyclone to separate medium coal particles with a particle size of 0.5 to 1 mm from clean coal particles with a particle size of less than 0.5. When the cyclone is sorting, the peat slurry (hereinafter referred to as coal slurry) is pumped into the feed pipe of the cyclone through a pressure pump, and then enters the cylindrical shell of the cyclone through the feed pipe. After entering the shell, the coal slurry performs a rotary motion. At this time, the medium coal particles in the coal slurry move downward in a spiral along the inner wall of the shell under the combined action of centrifugal force and gravity, and finally discharged from the sand settling nozzle at the bottom of the shell. The clean coal particles make a spiral upward motion along the center part through the separation interface, and finally discharged from the overflow pipe at the top of the shell. However, when the current cyclone is used to sort peat, the bottom flow discharged from the sand settling nozzle contains coal particles, which will cause severe wear on the sand settling nozzle of the cyclone, resulting in frequent repairs. During the repair process, the cyclone cannot be used normally, affecting the continuity of production. As the degree of wear of the sand settling nozzle continues to deepen, the sorting efficiency of the cyclone will also be affected. Therefore, there is an urgent need for a coal sorting device that can reduce the wear on the sand settling nozzle of the cyclone. Utility Model Content
[0004] The utility model aims to provide a coal material sorting device to solve the problem that the sand settling nozzle of the cyclone is severely worn during coal paddle sorting.
[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a coal sorting device, comprising a cyclone body, the cyclone body comprising a cylindrical section, a feed pipe is connected to the side wall of the cylindrical section, an overflow pipe is fixedly connected to the top of the cylindrical section, the bottom end of the overflow pipe passes through the cylindrical section and is located inside the cylindrical section, and the bottom of the cylindrical section is connected to a cone section;
[0006] It also includes a buffer box, which is fixedly installed at the bottom end of the conical cylinder section. The bottom end of the buffer box is connected to a discharge pipe. The buffer box is used to split the bottom flow flowing down the conical cylinder section into two streams of water, and let the two streams of water offset each other to slow down the flow rate, and merge the water flows with slowed flow rate in the buffer box, and let the merged water flow be discharged from the buffer box through the discharge pipe.
[0007] Beneficial effects of the utility model:
[0008] 1. In this solution, the buffer tank is used to slow down the flow rate of the underflow in the cyclone body. As a result, when the underflow carrying medium coal particles is discharged through the discharge pipe, its flow rate is greatly reduced. Thus, the impact force of the medium coal particles on the discharge pipe is reduced, and the wear of the medium coal particles in the underflow on the discharge pipe is greatly reduced, improving the service life of the discharge pipe and ensuring the continuous operation time and separation efficiency of the cyclone.
[0009] 2. Due to the partial water storage function of the buffer tank, when the underflow enters the buffer tank, the underflow retained in the buffer tank can absorb part of the impact of the underflow and the impact force of the medium coal particles, thereby reducing the noise generated when the underflow is discharged.
[0010] Furthermore, a water inlet hole is provided at the top of the buffer tank. The water inlet hole is fixedly connected and communicated with the bottom end of the conical cylinder section. Two curved pipes are arranged in the buffer tank in a mirror-symmetrical manner. The water outlet ends of the two curved pipes face each other. A semi-cylindrical shunt pipe is fixedly connected to the water inlet end of each of the two curved pipes. The two air flow pipes are both fixedly connected in the water inlet hole, and the radius of the two shunt pipes is the same as the radius of the water inlet hole. During use, the underflow in the conical cylinder section flows into the two shunt pipes through the water inlet hole, then enters the curved pipes along the shunt pipes, and then is discharged from the water outlet ends of the curved pipes. Since the water outlet ends of the two curved pipes face each other, the underflows in the two curved pipes will collide when discharged, thereby offsetting the impact force with each other.
[0011] Furthermore, the bottom of the buffer tank is funnel-shaped. The purpose is to avoid liquid accumulation in the buffer tank when the equipment stops being used through this setting.
[0012] Furthermore, an inspection opening is provided on the side wall of the buffer tank, and a sealing cover is hinged to the inspection opening. The purpose is to facilitate the internal maintenance of the buffer tank through the inspection opening through this setting.
[0013] Furthermore, a regulating valve for adjusting the water flow rate is provided on the discharge pipe. The purpose is to adjust the flow rate of the discharge pipe according to actual needs through the regulating valve. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a schematic structural diagram of a coal material separation device of the present utility model;
[0015] Figure 2 is Figure 1 a schematic structural diagram of the top view of the water inlet hole in DETAILED DESCRIPTION OF THE EMBODIMENTS
[0016] The following is a further detailed description through specific embodiments:
[0017] The reference numerals in the drawings of the specification include: overflow pipe 1, cylindrical section 2, feed pipe 3, conical section 4, buffer box 5, diverter pipe 6, curved pipe 7, discharge pipe 8, regulating valve 9, and sealing cover 10.
[0018] The embodiment is basically as shown in the attached Figure 1 and attached Figure 2 As shown:
[0019] A coal sorting device comprises a cyclone body, the cyclone body comprises a cylindrical section 2, a feed pipe 3 is connected to the side wall of the cylindrical section 2, an overflow pipe 1 is fixedly connected to the top of the cylindrical section 2, the bottom end of the overflow pipe 1 passes through the cylindrical section 2 and is located inside the cylindrical section 2, and a conical cylinder section 4 is connected to the bottom of the cylindrical section 2;
[0020] It also includes a buffer box 5, the side wall of which is provided with an inspection port, a sealing cover 10 is hinged in the inspection port, the buffer box 5 is fixedly mounted at the bottom end of the conical cylinder section 4, the bottom end of the buffer box 5 is funnel-shaped, a discharge pipe 8 is connected at the lowest point of the bottom of the buffer box 5, and a regulating valve 9 for adjusting the water flow size is provided on the discharge pipe 8. A water inlet is provided at the top of the buffer box 5, the water inlet is fixedly connected and connected to the bottom end of the conical cylinder section 4, two curved pipes 7 are provided in the buffer box 5 in mirror symmetry, the water outlets of the two curved pipes 7 are opposite to each other, the water inlets of the two curved pipes 7 are fixedly connected with semi-cylindrical shunt pipes 6, the two shunt pipes are fixedly connected in the water inlet, and the radius of the two shunt pipes 6 is the same as the radius of the water inlet.
[0021] The specific implementation process is as follows:
[0022] During use, the coal slurry is pumped into the cylindrical section 2 through the feed pipe 3. Since the feed pipe 3 is connected to the side wall of the cylindrical section 2, the coal slurry will swirl along the inner wall of the cylindrical section 2 and flow into the conical section 4, and flow downward in a spiral along the inner wall of the conical section 4. At this time, the medium coal particles in the coal slurry are separated from the coal slurry under the combined action of centrifugal force and gravity and become bottom flow that flows to the bottom end of the conical section 4, and then flows into the two diversion pipes 6 through the water inlet hole, and then enters the curved pipe 7 along the diversion pipe 6, and then is discharged along the water outlet of the curved pipe 7. Since the water outlets of the two curved pipes 7 are directly opposite to each other, the bottom flows in the two curved pipes 7 will collide when discharged, thereby offsetting each other's impact force. At this time, the bottom flow falls downward to the bottom of the buffer box 5 under the action of gravity, and then is discharged through the discharge pipe 8 at the bottom of the buffer box 5.
Claims
1. A coal material sorting device, characterized in that: It includes a cyclone body, and the cyclone body includes a cylindrical section. A feed pipe is communicated with the side wall of the cylindrical section. An overflow pipe is fixedly connected to the top end of the cylindrical section, and the bottom end of the overflow pipe passes through the cylindrical section and is located inside the cylindrical section. The bottom of the cylindrical section is communicated with a conical barrel section; It further includes a buffer tank. The buffer tank is fixedly installed at the bottom end of the conical barrel section. A discharge pipe is communicated with the bottom end of the buffer tank. The buffer tank is used for splitting the underflow flowing down in the conical barrel section into two water flows, making the two water flows impact each other to slow down the flow rate, and converging the water flow with the reduced flow rate in the buffer tank, and discharging the converged water flow out of the buffer tank through the discharge pipe.
2. The coal material sorting device according to claim 1, characterized in that: An inlet hole is provided at the top of the buffer tank. The inlet hole is fixedly connected and communicated with the bottom end of the conical barrel section. Two curved pipes in mirror symmetry are provided in the buffer tank. The water outlets of the two curved pipes face each other. Semi-cylindrical flow dividing pipes are fixedly connected to the water inlets of the two curved pipes. The two air flow pipes are both fixedly connected in the inlet hole, and the radii of the two flow dividing pipes are the same as the radius of the inlet hole.
3. The coal material sorting device according to claim 2, characterized in that: The bottom of the buffer tank is funnel-shaped.
4. The coal material sorting device according to claim 3, characterized in that: An inspection opening is formed in the side wall of the buffer tank, and a sealing cover is hinged in the inspection opening.
5. A coal material sorting device according to claim 4, characterized in that: A regulating valve for adjusting the size of the water flow is provided on the discharge pipe.