Electromagnetic heating rod mill

Abstract

The invention relates to the technical field of coal processing equipment, in particular to an electromagnetic heating rod mill. The electromagnetic heating rod mill comprises a rack, a left supporting seat and a right supporting seat, wherein the left supporting seat and the right supporting seat are erected on the rack, and rolling sealing bearings are mounted in the left supporting seat and the right supporting seat; the rod milling mechanism used for rolling and grinding materials is installed on the rack, the rod milling mechanism comprises a middle cylinder body and an electromagnetic coil, the rod milling mechanism is erected on the rack and covers the middle cylinder body, and the electromagnetic coil is electrically connected with an electromagnetic heating controller; the discharging mechanism used for discharging materials is mounted on the right cylinder body; the water inlet pipe is installed at the top end of the right cylinder body and communicates with the right cylinder body, and a first one-way valve is installed at the top end of the water inlet pipe; the pressure relief pipe is installed at the top end of the right cylinder body and communicated with the right cylinder body, and a pressure relief valve is installed on the pressure relief pipe. The electromagnetic heating rod mill provided by the invention has the advantages of simple structure and high hydrothermal dehydration efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of coal processing equipment, in particular to an electromagnetic heating rod mill. Background Art

[0002] Low-rank coal is a type of coal with a low degree of coalification, which has the characteristics of high moisture content, low calorific value, good chemical reactivity, flammability and brittleness. Low-rank coal mainly includes lignite and low-metamorphic bituminous coal. The proven reserves of low-rank coal resources in the world exceed 465 billion tons, accounting for more than 40% of the world's total proven coal reserves. my country's proven reserves of low-rank coal resources are more than 200 billion tons, accounting for about 20% of the country's proven coal reserves. Because of the low degree of coalification, low-rank coal is directly burned as fuel, which not only has low combustion efficiency, but also causes serious environmental pollution. Water-coal slurry technology originated in the 1980s. After decades of development and improvement, water-coal slurry technology has become increasingly mature. Water-coal slurry technology has become a preferred technology that can be promoted in my country at this stage to replace fuel, protect the environment, and save energy. For the sluggish state of the coal market in recent years, the development of water-coal slurry technology is also of great significance to promoting the diversification of coal products, adjusting and improving the energy structure, and alleviating environmental pressure.

[0003] However, due to the abundant capillary pores and large porosity of lignite, high water content, rich oxygen-containing functional groups, high O / C ratio, low heat, and high volatile matter, it is difficult to directly make high-concentration water-coal slurry without treatment. Hydrothermal dehydration and quality improvement is a "non-evaporative" dehydration technology that can remove the water in low-rank coal in liquid form under saturated vapor pressure conditions, and remove the oxygen-containing functional groups in low-rank coal at the same time. After hydrothermal quality improvement, the equilibrium water content, volatile matter content, hydrogen content and oxygen content of low-rank coal are reduced, and the fixed carbon and calorific value are significantly increased. However, the existing water-coal slurry processing equipment is inefficient during hydrothermal dehydration and cannot achieve continuous water washing processing.

[0004] Therefore, it is necessary to provide a new electromagnetic heating rod mill to solve the above-mentioned technical problems. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides an electromagnetic heating rod mill with simple structure and high hydrothermal dehydration efficiency.

[0006] The electromagnetic heating rod mill provided by the present invention comprises: a frame, and a left support seat and a right support seat mounted on the frame, wherein rolling sealing bearings are installed in the left support seat and the right support seat;

[0007] A rod mill mechanism, the rod mill mechanism for rolling grinding of materials is installed on the frame, and the rod mill mechanism includes an intermediate cylinder body, the intermediate cylinder body is rotatably installed on the rolling sealing bearings in the left support seat and the right support seat, the left support seat is fixedly installed with a left cylinder body for sealing one end of the intermediate cylinder body, the right support seat is fixedly installed with a right cylinder body for sealing the other end of the intermediate cylinder body, the intermediate cylinder body is filled with a plurality of steel grinding rods, one end of the intermediate cylinder body is fixedly sleeved with a large gear, a power motor and a reducer are installed on the frame, the output shaft of the power motor is drivingly connected with the input shaft of the reducer, the output shaft of the reducer is fixedly sleeved with a small gear, and the small gear is meshed with the large gear;

[0008] An electromagnetic coil is mounted on the frame and contains the intermediate cylinder cover, and the electromagnetic coil is electrically connected to an electromagnetic heating controller;

[0009] A feeding mechanism, which is used for automatic material feeding and is installed on the left cylinder body;

[0010] A discharging mechanism, the discharging mechanism for discharging materials is installed on the right cylinder body;

[0011] A water inlet pipe is installed at the top of the right cylinder body and is connected to the right cylinder body, and a one-way valve 1 is installed at the top of the water inlet pipe;

[0012] A pressure relief pipe is installed at the top of the right cylinder body and is connected to the right cylinder body, and a pressure relief valve is installed on the pressure relief pipe;

[0013] A thermocouple is embedded in the right cylinder body and electrically connected to the electromagnetic heating controller.

[0014] Preferably, a screen is embedded at one end of the right cylinder body close to the middle cylinder body, the aperture of the screen is smaller than the diameter of the steel grinding rod, and a nitrogen pressure regulating pipe is embedded at the other end of the right cylinder body, and a pressure balancing valve is installed on the nitrogen pressure regulating pipe.

[0015] Preferably, the feeding mechanism includes a delivery pipe, which is fixedly mounted on the left cylinder body, and a hydraulic cylinder 1 is fixedly mounted on one end of the delivery pipe away from the left cylinder body, a feeding piston is mounted on the telescopic end of the hydraulic cylinder 1, a feeding pipe is mounted in the middle of the delivery pipe, and a feeding funnel is mounted on the feeding pipe.

[0016] Preferably, a gate valve 1 is installed at one end of the delivery pipe close to the left cylinder body, and a gate valve 2 is installed at one end of the feed pipe close to the delivery pipe.

[0017] Preferably, a centering tube connected to the delivery pipe is installed in the left cylinder body, and a retaining ring is fixedly installed on one end of the centering tube facing the middle cylinder body.

[0018] Preferably, a protective sleeve is fixedly mounted on the end of the feed piston away from the left cylinder body, the length of the protective sleeve is greater than the maximum distance between the feed pipe and the left cylinder body, and the outer diameter of the protective sleeve is equal to the inner diameter of the delivery pipe.

[0019] Preferably, the discharging mechanism includes a discharging pipe, which is fixedly mounted on the right cylinder body, and a hydraulic cylinder 2 is fixedly mounted on one end of the discharging pipe away from the right cylinder body, a discharging piston is mounted on the telescopic end of the hydraulic cylinder 2, and a discharging port is opened at the middle bottom end of the discharging pipe.

[0020] Preferably, the discharging piston is a double piston head, and the distance between the two piston heads is less than or equal to the shortest distance between the discharging port and the right cylinder body.

[0021] Preferably, a material trough is installed at the discharge port, and a stirring component is installed in the material trough.

[0022] Preferably, the stirring assembly includes a stirring motor, which is fixedly installed on the outside of the material trough, and the input shaft of the stirring motor extends into the material trough and is fixedly installed with a transmission rod, and a plurality of stirring rods are evenly installed on the transmission rod, and an electric rod is symmetrically installed on the outside of the material trough, and a sealing block for sealing the bottom end of the material trough is fixedly installed on the telescopic end of the electric rod, an injection tube is embedded in the sealing block, and a one-way valve 2 is embedded in the injection tube.

[0023] Compared with the related art, the electromagnetic heating rod mill provided by the present invention has the following beneficial effects:

[0024] 1. The present invention provides an electromagnetic heating rod mill. The rod mill mechanism is provided with a rotating intermediate cylinder body. The intermediate cylinder body is convenient for driving the intermediate cylinder body to rotate by using the cooperation of a large gear, a power motor, a reducer and a small gear, so as to utilize the movement of the steel grinding rod in the intermediate cylinder body to perform rod grinding. When grinding materials, an electromagnetic heating controller is used to control the conduction of the electromagnetic coil, so as to utilize the electromagnetic heating technology, and place the cylinder body of the rod mill in the middle of the electromagnetic heating coil. This method heats, and the electromagnetic coil does not contact the cylinder body, and does not affect the free rotation of the cylinder body at all. When the electromagnetic heating is working, the steel rod in the cylinder and the cylinder body are heated at the same time, and the steel rod continuously rolls to evenly heat the coal-water mixture while grinding the coal;

[0025] 2. By setting up piston-type feeding and discharging mechanisms, the airtightness of the middle cylinder can be maintained during continuous loading and unloading to avoid leakage of crude gas;

[0026] 3. By installing a material trough in the discharge port of the discharge pipe, a stirring assembly is arranged in the material trough, so that the discharged water-coal slurry can be fully stirred, the uniformity of the coal-water mixture is improved, and the catalyst can be added through the injection tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic structural diagram of a preferred embodiment of the electromagnetic heating rod mill provided by the present invention;

[0028] Figure 2 A schematic structural diagram of an axial section of the electromagnetic heating rod mill provided by the present invention;

[0029] Figure 3 A schematic diagram of the structure of a rod mill mechanism installed on a frame provided by the present invention;

[0030] Figure 4 A schematic diagram of a structure in which a feeding mechanism is installed on the left cylinder provided by the present invention;

[0031] Figure 5 A schematic diagram of a structure in which a discharging mechanism is installed on the right cylinder provided by the present invention;

[0032] Figure 6 A structural schematic diagram of another perspective of a discharging mechanism installed on the right cylinder provided by the present invention;

[0033] Figure 7 The present invention is a schematic structural diagram of a cross section of a discharging mechanism installed on the right cylinder body.

[0034] Numbers in the figure: 1, frame; 11, left support seat; 12, right support seat; 13, rolling seal bearing; 2, rod mill mechanism; 21, middle cylinder; 22, left cylinder; 221, centering pipe; 222, retaining ring; 23, right cylinder; 231, nitrogen pressure regulating pipe; 232, air pressure balance valve; 24, steel grinding rod; 25, large gear; 26, power motor; 27, reducer; 28, small gear; 29, screen; 3, electromagnetic coil; 31, electromagnetic heating controller; 4, feeding mechanism; 41, conveying pipe; 42, hydraulic cylinder 1; 43. Feed piston; 431. Protective sleeve; 44. Feed pipe; 45. Feed funnel; 46. Gate valve one; 47. Gate valve two; 5. Discharge mechanism; 51. Discharge pipe; 52. Hydraulic cylinder two; 53. Discharge piston; 54. Material trough; 501. Discharge port; 6. Water inlet pipe; 61. One-way valve one; 7. Pressure relief pipe; 71. Pressure relief valve; 8. Thermocouple; 9. Stirring assembly; 91. Stirring motor; 92. Transmission rod; 93. Stirring rod; 94. Electric rod; 95. Sealing block; 96. Injection tube; 97. One-way valve two. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0036] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0037] Embodiment 1

[0038] See also Figures 1 to 7 , an electromagnetic heating rod mill provided in the first embodiment of the present invention, the electromagnetic heating rod mill comprises:

[0039] A frame 1, and a left support seat 11 and a right support seat 12 mounted on the frame 1, wherein a rolling seal bearing 13 is installed in the left support seat 11 and the right support seat 12;

[0040] A rod mill mechanism 2, which is used for rolling grinding of materials, is installed on the frame 1, and the rod mill mechanism 2 includes an intermediate cylinder body 21, which is rotatably installed on the rolling sealing bearings 13 in the left support seat 11 and the right support seat 12, a left cylinder body 22 for sealing one end of the intermediate cylinder body 21 is fixedly installed on the left support seat 11, and a right cylinder body 23 for sealing the other end of the intermediate cylinder body 21 is fixedly installed on the right support seat 12, and a plurality of steel grinding rods 24 are filled in the intermediate cylinder body 21, and a large gear 25 is fixedly sleeved at one end of the intermediate cylinder body 21, and a power motor 26 and a reducer 27 are installed on the frame 1, and the output shaft of the power motor 26 is drivingly connected to the input shaft of the reducer 27, and the output shaft of the reducer 27 is fixedly sleeved with a small gear 28, and the small gear 28 is meshed with the large gear 25;

[0041] The electromagnetic coil 3 is mounted on the frame 1 and covers the intermediate cylinder 21, and the electromagnetic coil 3 is electrically connected to the electromagnetic heating controller 31;

[0042] A feeding mechanism 4, which is used for automatic material feeding, is installed on the left cylinder body 22;

[0043] A discharging mechanism 5 for discharging materials is installed on the right cylinder body 23;

[0044] The water inlet pipe 6 is installed at the top of the right cylinder body 23 and communicates with the right cylinder body 23, and a one-way valve 61 is installed at the top of the water inlet pipe 6;

[0045] A pressure relief pipe 7 is installed at the top of the right cylinder 23 and communicated with the right cylinder 23, and a pressure relief valve 71 is installed on the pressure relief pipe 7;

[0046] The thermocouple 8 is embedded in the right cylinder 23 and is electrically connected to the electromagnetic heating controller 31 .

[0047] It should be noted that: when in use, the preliminarily crushed low-rank coal is introduced from the feeding mechanism 4 into the left cylinder 22, and then into the middle cylinder 21, the electromagnetic heating controller 31 controls the electromagnetic coil 3 to be energized, and water is injected into the middle cylinder 21 through the water inlet pipe 6, and then the power motor 26 is started, and the power motor 26 drives the small gear 28 to rotate through the reducer 27, and the small gear 28 meshes with the large gear 25, thereby driving the large gear 25 to drive the middle cylinder 21 to rotate, and the steel grinding rod 24 is rotated to the position where the steel grinding rod 24 is rotated. Then it falls to grind the material and water in the middle cylinder 21. When rotating, the electromagnetic coil 3 synchronously performs electromagnetic heating on the middle cylinder 21 and the steel grinding rod 24, so that the steel rod can continuously roll and evenly heat the coal-water mixture while grinding the coal. After stirring, the material is discharged by the discharging mechanism 5. During the heating process, the raw coal gas generated by the heating is introduced from the pressure relief pipe 7 to the tail gas treatment equipment for treatment. When the pressure is relieved, the pressure relief valve 71 is used to automatically relieve the pressure and exhaust when the air pressure in the middle cylinder 21 is greater than the set value.

[0048] It should also be noted that the inner and outer sides of the middle cylinder 21, the left cylinder 22 and the right cylinder 23 are all coated with a heat insulation coating.

[0049] In the embodiments of the present invention, please refer to Figures 1 to 7 A screen 29 is embedded at one end of the right cylinder 23 close to the middle cylinder 21, the aperture of the screen 29 is smaller than the diameter of the steel grinding rod 24, and a nitrogen pressure regulating pipe 231 is embedded at the other end of the right cylinder 23, and a pressure balancing valve 232 is installed on the nitrogen pressure regulating pipe 231;

[0050] It should be noted that: when discharging, the media ground in the middle cylinder 21 falls into the right cylinder 23 through the screen 29, which is convenient for the discharging mechanism 5 to discharge. The aperture of the screen 29 is smaller than the diameter of the steel grinding rod 24 to prevent the steel grinding rod 24 from entering the right cylinder 23 and causing rotation interference. The right cylinder 23 is connected to the nitrogen tank by setting a nitrogen pressure regulating pipe 231. When the internal air pressure drops, the air pressure balance valve 232 automatically pours inert nitrogen into the middle cylinder 21. While regulating the pressure, the inert gas is filled in to prevent low-grade coal from exploding during the production process.

[0051] In the embodiments of the present invention, please refer to Figures 1 to 7 The feeding mechanism 4 includes a delivery pipe 41, which is fixedly mounted on the left cylinder body 22, and a hydraulic cylinder 42 is fixedly mounted on one end of the delivery pipe 41 away from the left cylinder body 22, a feeding piston 43 is mounted on the telescopic end of the hydraulic cylinder 42, a feeding pipe 44 is mounted in the middle of the delivery pipe 41, and a feeding funnel 45 is mounted on the feeding pipe 44;

[0052] Among them, a gate valve 1 46 is installed at one end of the delivery pipe 41 close to the left cylinder body 22, and a gate valve 2 47 is installed at one end of the feed pipe 44 close to the delivery pipe 41.

[0053] It should be noted that: when the feeding mechanism 4 is in use, the preliminarily ground low-rank coal is introduced into the feeding funnel 45. When the intermediate cylinder 21 needs to be fed, the feeding piston 43 is on the left side of the feeding pipe 44. At this time, the gate valve 1 46 is in a closed state, and then the gate valve 2 47 is opened to introduce the material in the feeding pipe 44 into the conveying pipe 41. Then the gate valve 2 47 is closed, and the gate valve 1 46 is opened. Then the hydraulic cylinder 1 42 is controlled to drive the feeding piston 43 to push the coal material falling into the conveying pipe 41 into the left cylinder 22 to complete the feeding. After pushing, the feeding piston 43 is controlled to retreat and reset, and then the gate valve 1 46 is closed, and the gate valve 2 47 is opened to prepare for the next feeding. In this way, when feeding, the gate valve 1 46 and the gate valve 2 47 are opened and closed alternately to achieve the feeding seal of the intermediate cylinder 21.

[0054] In the present embodiment, a centering tube 221 connected to the conveying pipe 41 is installed in the left cylinder body 22, and a retaining ring 222 is fixedly installed on one end of the centering tube 221 facing the middle cylinder body 21. In this way, the centering tube 221 is used to carry the coal pushed by the feed piston 43, so that it is convenient for it to fall into the middle cylinder body 21, and the retaining ring 222 is provided to limit the steel grinding rod 24 to prevent it from falling into the left cylinder body 22 when grinding coal, causing rotation interference.

[0055] A protective sleeve 431 is fixedly mounted on one end of the feed piston 43 away from the left cylinder body 22. The length of the protective sleeve 431 is greater than the maximum distance between the feed pipe 44 and the left cylinder body 22, and the outer diameter of the protective sleeve 431 is equal to the inner diameter of the delivery pipe 41.

[0056] It should be noted that: when the feed piston 43 is pushing the material, when the feed piston 43 passes over the feed pipe 44, the protective sleeve 431 is used for protection to prevent the coal at the mouth of the feed pipe 44 from falling into the left side of the feed piston 43, causing the feed piston 43 to get stuck when it is reset, affecting the subsequent continuous feeding.

[0057] In the embodiments of the present invention, please refer to Figures 1 to 7 The discharging mechanism 5 includes a discharging pipe 51, which is fixedly mounted on the right cylinder body 23, and a hydraulic cylinder 2 52 is fixedly mounted on one end of the discharging pipe 51 away from the right cylinder body 23, and a discharging piston 53 is mounted on the telescopic end of the hydraulic cylinder 2 52, and a discharging port 501 is opened at the middle bottom end of the discharging pipe 51;

[0058] It should be noted that: when the discharging mechanism 5 is in use, the ground coal passes through the screen 29 and falls into the right cylinder 23. The discharging piston 53 is pushed into the right cylinder 23 by controlling the hydraulic cylinder 2 52, and the water-coal mixture is introduced into the discharging pipe 51. Then, the hydraulic cylinder 2 52 is controlled to contract, and the water-coal mixture in the discharging pipe 51 is discharged from the discharging port 501 by the discharging piston 53 to complete the discharging.

[0059] In the present embodiment, the discharge piston 53 is a double piston head, and the distance between the two piston heads is less than or equal to the shortest distance between the discharge port 501 and the right cylinder body 23. The double-headed discharge piston 53 is arranged in this way, so that no matter how the discharge piston 53 moves, the middle cylinder body 21 can always maintain a high-pressure seal. Specifically, during discharge, the left piston extends into the grinder, and the sealing state is maintained by the right piston head. The piston continues to move to the right, and the right piston passes through the discharge port 501. At this time, the left piston maintains a high-pressure seal.

[0060] Embodiment 2

[0061] This second embodiment is based on the first embodiment. Figures 1 to 7 A material trough 54 is installed at the material outlet 501, and a stirring component 9 is installed in the material trough 54;

[0062] The stirring assembly 9 includes a stirring motor 91, which is fixedly installed on the outside of the material trough 54, and the input shaft of the stirring motor 91 extends into the material trough 54 and is fixedly installed with a transmission rod 92, and a plurality of stirring rods 93 are evenly installed on the transmission rod 92. An electric rod 94 is symmetrically installed on the outside of the material trough 54, and a sealing block 95 for sealing the bottom end of the material trough 54 is fixedly installed at the telescopic end of the electric rod 94, and an injection tube 96 is embedded in the sealing block 95, and a one-way valve 97 is embedded in the injection tube 96.

[0063] It should be noted that the water-coal mixture discharged from the discharge port 501 automatically falls into the material trough 54, and then the stirring motor 91 is started. The stirring motor 91 drives the transmission rod 92 to drive the stirring rod 93 to stir in the material trough 54, thereby further making the mixture more evenly stirred. During stirring, a catalyst can be injected into the material trough 54 through the injection tube 96 to improve the catalytic reaction effect and improve the production efficiency of water-coal slurry. After stirring evenly, the sealing block 95 is controlled by the electric rod 94 to withdraw from the bottom end of the material trough 54 to complete the discharge. After discharge, the electric rod 94 is controlled to drive the sealing block 95 to reset, and then the above-mentioned discharge steps are repeated to achieve automatic and continuous sealed discharge.

[0064] It should also be noted that during stirring, the discharge piston 53 seals the discharge port 501 . Specifically, the two pistons of the discharge piston 53 are located on the left and right sides of the discharge port 501 , respectively.

[0065] The working principle of the electromagnetic heating rod mill provided by the present invention is as follows:

[0066] When in use, the preliminarily crushed low-rank coal is introduced from the feeding mechanism 4 into the left cylinder body 22, specifically, the preliminarily ground low-rank coal is introduced into the feeding funnel 45. When the intermediate cylinder body 21 needs to be fed, the feeding piston 43 is on the left side of the feeding pipe 44. At this time, the gate valve 1 46 is in a closed state. Then the gate valve 2 47 is opened to introduce the material in the feeding pipe 44 into the conveying pipe 41. Then the gate valve 2 47 is closed, and the gate valve 1 46 is opened. Then the hydraulic cylinder 1 42 is controlled to drive the feeding piston 43 to push the coal material falling into the conveying pipe 41 into the left cylinder body 22 to complete the feeding. Then, the coal material is introduced into the intermediate cylinder body 21. The electromagnetic heating controller 31 controls the electromagnetic coil 3 to be energized, and water is injected into the intermediate cylinder body 21 through the water inlet pipe 6. Then the power motor 26 is started. The power motor 26 drives the small gear 28 to rotate through the reducer 27. The small gear 28 meshes with the large gear 25, thereby driving the large gear 25 to drive the intermediate cylinder body 21 to rotate. , when rotating, the steel grinding rod 24 is rotated to the position and then falls, grinding the material and water in the middle cylinder body 21. When rotating, the electromagnetic coil 3 synchronously performs electromagnetic heating on the middle cylinder body 21 and the steel grinding rod 24, so that the steel rod continuously rolls and uniformly heats the coal-water mixture while grinding the coal. After stirring, the discharging mechanism 5 is used to discharge the material. Specifically, the ground coal passes through the screen 29 and falls into the right cylinder body 23. The discharging piston 53 is pushed into the right cylinder body 23 by controlling the hydraulic cylinder 2 52, and the water-coal mixture is introduced into the discharging pipe 51. Then, the hydraulic cylinder 2 52 is controlled to contract, and the water-coal mixture in the discharging pipe 51 is discharged from the discharging port 501 by the discharging piston 53 to complete the discharging. During the heating process, the raw coal gas generated by heating is introduced from the pressure relief pipe 7 to the tail gas treatment equipment for treatment. When the pressure is relieved, the pressure relief valve 71 is used to automatically relieve the pressure and exhaust when the air pressure in the middle cylinder body 21 is greater than the set value;

[0067] Furthermore, during feeding, the gate valve 1 46 and the gate valve 2 47 are alternately opened and closed to realize the feeding seal of the middle cylinder 21. During discharging, a double-headed discharging piston 53 is provided so that no matter how the discharging piston 53 moves, the middle cylinder 21 can always maintain a high-pressure seal. Specifically, during discharging, the left piston extends into the mill, and the sealing state is maintained by the right piston head. The piston continues to move to the right, and the right piston passes through the discharging port 501. At this time, the left piston maintains a high-pressure seal.

[0068] During discharging, the water-coal mixture discharged from the discharge port 501 automatically falls into the material trough 54, and then the stirring motor 91 is started. The stirring motor 91 drives the transmission rod 92 to drive the stirring rod 93 to stir in the material trough 54, thereby further making the mixture more evenly stirred. During stirring, a catalyst can be injected into the material trough 54 through the injection tube 96 to improve the catalytic reaction effect and improve the production efficiency of water-coal slurry. After stirring evenly, the sealing block 95 is controlled by the electric rod 94 to withdraw from the bottom end of the material trough 54 to complete the discharging. After discharging, the electric rod 94 is controlled to drive the sealing block 95 to reset, and then the above-mentioned discharging steps are repeated to realize automatic and continuous sealed discharging.

[0069] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0070] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An electromagnetic heating rod mill, comprising: A frame (1), and a left support seat (11) and a right support seat (12) mounted on the frame (1), wherein a rolling seal bearing (13) is installed in each of the left support seat (11) and the right support seat (12); It is characterized by further comprising: A rod mill mechanism (2), the rod mill mechanism (2) for rolling grinding of materials is installed on the frame (1), and the rod mill mechanism (2) comprises an intermediate cylinder body (21), the intermediate cylinder body (21) is rotatably installed on rolling sealing bearings (13) in the left support seat (11) and the right support seat (12), the left support seat (11) is fixedly installed with a left cylinder body (22) for sealing one end of the intermediate cylinder body (21), and the right support seat (12) is fixedly installed with a left cylinder body (22) for sealing one end of the intermediate cylinder body (21). 21), a right cylinder (23) at the other end, a plurality of steel grinding rods (24) are filled in the middle cylinder (21), a large gear (25) is fixedly sleeved at one end of the middle cylinder (21), a power motor (26) and a reducer (27) are installed on the frame (1), the output shaft of the power motor (26) is drivingly connected to the input shaft of the reducer (27), the output shaft of the reducer (27) is fixedly sleeved with a small gear (28), and the small gear (28) is meshed with the large gear (25); An electromagnetic coil (3) is mounted on the frame (1) and covers the intermediate cylinder (21) therein, and the electromagnetic coil (3) is electrically connected to an electromagnetic heating controller (31); A feeding mechanism (4), the feeding mechanism (4) for automatically feeding materials is installed on the left cylinder body (22); A discharging mechanism (5), the discharging mechanism (5) for discharging materials is installed on the right cylinder body (23); A water inlet pipe (6) is installed at the top end of the right cylinder body (23) and is in communication with the right cylinder body (23), and a one-way valve (61) is installed at the top end of the water inlet pipe (6); A pressure relief pipe (7) is installed at the top end of the right cylinder body (23) and is in communication with the right cylinder body (23), and a pressure relief valve (71) is installed on the pressure relief pipe (7); A thermocouple (8) is embedded in the right cylinder (23) and is electrically connected to the electromagnetic heating controller (31).

2. The electromagnetic heating rod mill according to claim 1, characterized in that: A screen (29) is embedded in one end of the right cylinder body (23) close to the middle cylinder body (21), the aperture of the screen (29) is smaller than the diameter of the steel grinding rod (24), and a nitrogen pressure regulating pipe (231) is embedded in the other end of the right cylinder body (23), and a gas pressure balancing valve (232) is installed on the nitrogen pressure regulating pipe (231).

3. The electromagnetic heating rod mill according to claim 1, characterized in that: The feeding mechanism (4) comprises a delivery pipe (41), the delivery pipe (41) is fixedly mounted on the left cylinder body (22), and a hydraulic cylinder (42) is fixedly mounted on one end of the delivery pipe (41) away from the left cylinder body (22), a feeding piston (43) is mounted on the telescopic end of the hydraulic cylinder (42), a feeding pipe (44) is mounted in the middle of the delivery pipe (41), and a feeding funnel (45) is mounted on the feeding pipe (44).

4. The electromagnetic heating rod mill according to claim 3, characterized in that: A gate valve 1 (46) is installed at one end of the delivery pipe (41) close to the left cylinder body (22), and a gate valve 2 (47) is installed at one end of the feed pipe (44) close to the delivery pipe (41).

5. The electromagnetic heating rod mill according to claim 3, characterized in that: A centering tube (221) connected to the delivery tube (41) is installed in the left cylinder body (22), and a retaining ring (222) is fixedly installed on one end of the centering tube (221) facing the middle cylinder body (21).

6. The electromagnetic heating rod mill according to claim 3, characterized in that: A protective sleeve (431) is fixedly mounted on one end of the feed piston (43) away from the left cylinder body (22); the length of the protective sleeve (431) is greater than the maximum distance between the feed pipe (44) and the left cylinder body (22); and the outer diameter of the protective sleeve (431) is equal to the inner diameter of the delivery pipe (41).

7. The electromagnetic heating rod mill according to claim 1, characterized in that: The discharge mechanism (5) comprises a discharge pipe (51), the discharge pipe (51) is fixedly mounted on the right cylinder body (23), and a hydraulic cylinder 2 (52) is fixedly mounted on one end of the discharge pipe (51) away from the right cylinder body (23), a discharge piston (53) is mounted on the telescopic end of the hydraulic cylinder 2 (52), and a discharge port (501) is provided at the middle bottom end of the discharge pipe (51).

8. The electromagnetic heating rod mill according to claim 7, characterized in that: The discharge piston (53) is a double piston head, and the distance between the two piston heads is less than or equal to the shortest distance between the discharge port (501) and the right cylinder body (23).

9. The electromagnetic heating rod mill according to claim 7, characterized in that: A material trough (54) is installed at the material outlet (501), and a stirring assembly (9) is installed in the material trough (54).

10. The electromagnetic heating rod mill according to claim 9, characterized in that: The stirring assembly (9) comprises a stirring motor (91), the stirring motor (91) is fixedly mounted on the outer side of the material trough (54), and the input shaft of the stirring motor (91) extends into the material trough (54) and is fixedly mounted with a transmission rod (92), a plurality of stirring rods (93) are evenly mounted on the transmission rod (92), an electric rod (94) is symmetrically mounted on the outer side of the material trough (54), a sealing block (95) for sealing the bottom end of the material trough (54) is fixedly mounted on the telescopic end of the electric rod (94), an injection tube (96) is embedded on the sealing block (95), and a second check valve (97) is embedded in the injection tube (96).

Images