Coal pyrolysis device and process method thereof

Abstract

The application discloses a coal pyrolysis device and a process method thereof, which comprises an upper shell, a lower shell is rotationally arranged at the lower part of the inner side of the upper shell, a sealing structure is arranged between the upper shell and the lower shell, a stirring mechanism is arranged on the inner side of the upper shell, an upper feeding assembly which is communicated with the inner wall of the upper shell is arranged on the upper part of the upper shell, a walking mechanism which drives the rotation of the lower shell is arranged on the lower part of the lower shell, the lower part of the lower shell is in a conical surface structure, and a discharging pipe which is communicated with the inside of the lower shell is arranged on the lower part of the lower shell; the stirring mechanism comprises a stirring main shaft, and a hollow shaft reduction motor which drives the rotation of the stirring main shaft is arranged on the upper part of the upper shell. The coal material can be actively heated, the pyrolysis degree of the coal mine is more convenient to control, and the stirring main shaft is arranged in cooperation, the heating unit rotates in the coal material along with the rotation of the stirring main shaft, the heating unit can be more fully contacted with the coal material, and the heat exchange effect is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal pyrolysis, in particular to a coal pyrolysis device and a process method thereof. BACKGROUND

[0002] Coal pyrolysis process is widely used in coal chemical industry. At present, coal pyrolysis technology mainly includes solid heat carrier and external heating type. The pyrolysis gas and semi-coke produced after coal pyrolysis can be beneficial to subsequent processing and utilization. Specifically, lignite is heated by rapid mixing with hot carriers (hot semi-coke, hot ash, ceramic, iron ball, etc.) to extract light oil, coal gas and semi-coke. The graded integrated utilization of materials and energy in the chemical conversion process of such coal and even all high-moisture and high-oil coal will undoubtedly significantly improve the utilization efficiency of coal in China and the economic benefits of coal conversion. At the same time, due to the advantages of solid heat carrier technology such as light oil and high calorific value of coal gas, it has always been paid attention to. The device for carrying out coal pyrolysis process in the prior art is basically a horizontal rotary kiln structure. That is, the rotary kiln rotates to turn the material greatly to realize the axial movement and pyrolysis of the pyrolysis material.

[0003] After searching, the Chinese patent with the authorization publication number CN105985788B discloses a coal pyrolysis device, which comprises a shell with a feeding port and a gas outlet. The coal pyrolysis device comprises a horizontal turntable with a discharging port, the horizontal turntable is sealingly connected with the shell to form a pyrolysis space in communication with the gas outlet, wherein the discharging port is located at the radial center of the horizontal turntable, the feeding port is located at the radial outer side of the discharging port, and the coal pyrolysis device further comprises a material guiding mechanism and a material mixing mechanism. The material falling from the feeding port onto the horizontal turntable can move towards the discharging port under the action of the material guiding mechanism with the rotation of the horizontal turntable, and in the process of moving, the material can be mixed under the action of the material mixing mechanism with the rotation of the horizontal turntable. The device cannot be actively heated, and the feeding port is easy to escape pyrolysis gas, and the stirring form is single. Therefore, the present application provides a coal pyrolysis device and a process method thereof. SUMMARY

[0004] Based on the technical problems existing in the background technology, the present application provides a coal pyrolysis device and a process method thereof.

[0005] The coal pyrolysis device provided by the present application comprises an upper shell, a lower shell is rotationally arranged at the lower part of the inner side of the upper shell, a sealing structure is arranged between the upper shell and the lower shell, a stirring mechanism is arranged on the inner side of the upper shell, an upper feeding assembly communicating with the inner wall of the upper shell is arranged on the upper part of the upper shell, a walking mechanism driving the rotation of the lower shell is arranged on the lower part of the lower shell, the lower part of the lower shell is in a conical surface structure, and a discharging pipe communicating with the inside of the lower shell is arranged on the lower part of the lower shell.

[0006] The stirring mechanism comprises a stirring spindle, a hollow shaft reduction motor for driving the stirring spindle to rotate is arranged on the upper part of the upper shell, a guide protrusion is arranged on the inner side of the output shaft of the hollow shaft reduction motor, a guide groove matched with the guide protrusion is arranged on the outer circumferential surface of the stirring spindle, and a temperature raising assembly and a stirring assembly are sequentially arranged on the lower part of the stirring spindle.

[0007] The stirring assembly comprises a rotating support, a plurality of arc-shaped arms in annular distribution are arranged on the outer circumferential surface of the rotating support, an arc-shaped slide is arranged on the arc-shaped arm, an arc-shaped scraper is slidably arranged in the arc-shaped slide, a guide insertion rod is fixed to one end of the inner side of the arc-shaped slide, an insertion hole matched with the guide insertion rod is arranged on one end of the arc-shaped scraper, the guide insertion rod is inserted into the insertion hole, a second spring is sleeved on the outer circumferential surface of the guide insertion rod close to the upper part of the arc-shaped scraper, a conical table matched with the discharge pipe is arranged on the lower part of the rotating support, the inner side of the rotating support is in a hollow structure, a gas blowing hole communicating with the inside of the rotating support is arranged on the outer side of the rotating support, a one-way air nozzle is arranged in the gas blowing hole, a plurality of latticed rods are arranged on the lower part of the stirring spindle, a plurality of latticed insertion holes matched with the latticed rods are arranged on the upper part of the rotating support, an annular limiting cap is arranged on the lower part of the latticed rod close to the inner side of the rotating support, air inlet holes are arranged on the stirring spindle and the latticed rod in the axial direction, a sealing column is arranged on the lower part of the inner side of the rotating support, the sealing column is coaxially arranged with the air inlet hole, the sealing column is matched with the specification of the air inlet hole, a first spring is sleeved on the outer circumferential surface of the sealing column, a linkage assembly for realizing the lifting adjustment of the stirring mechanism is arranged on the upper part of the upper shell, and an arc-shaped baffle is arranged on the upper part of the arc-shaped scraper close to the outer side of the rotating support.

[0008] As a further optimization of the technical scheme, the upper shell of the coal pyrolysis device comprises a cover body, an annular cover in annular distribution is arranged on the outer circumferential surface of the cover body, a liquid inlet pipe is arranged on the annular cover, a motor support is arranged on the top of the cover body, the hollow shaft reduction motor is fixed on the top of the motor support, a passage for the stirring spindle to pass through is arranged on the upper part of the motor support, a feeding vertical cylinder is coaxially arranged at the middle position of the top of the cover body, and an air outlet pipe communicating with the inside of the cover body is arranged on the top of the cover body.

[0009] In the preferred scheme, the upper shell is installed at a suitable position in the production site through a support structure such as a support during installation.

[0010] As a further optimization of the technical scheme, the lower shell of the coal pyrolysis device comprises a lower turntable, an annular frame is arranged on the upper part of the lower turntable, an annular water seal cover is arranged on the outer circumferential surface of the annular frame, the sealing structure comprises an annular water seal groove fixed on the outer circumferential surface of the annular frame, and the lower edge of the annular water seal cover and the lower edge of the cover body are arranged in the annular water seal groove.

[0011] As a further optimization of the technical solution, the coal pyrolysis device, the upper feeding assembly comprises an outer cylinder arranged vertically, the top of the outer cylinder is an open structure, and an inner tube is arranged in the inner side of the outer cylinder, the top of the inner tube is provided with a feeding hopper, the lower part of one side of the outer cylinder is provided with a inclined pipe communicating with the outer cylinder and the feeding vertical cylinder, the lower end of the inner tube is a inclined surface structure, and the lower part of the side wall of the inner tube is provided with a discharge port matched with the inclined pipe, the top of the cover body is fixed with a door-shaped support, and the inner side of the door-shaped support is provided with hydraulic oil cylinders on both sides for lifting the inner tube.

[0012] As a further optimization of the technical solution, the coal pyrolysis device, the upper feeding assembly comprises an outer cylinder arranged vertically, the top of the outer cylinder is an open structure, and an inner tube is arranged in the inner side of the outer cylinder, the top of the inner tube is provided with a feeding hopper, the lower part of one side of the outer cylinder is provided with a inclined pipe communicating with the outer cylinder and the feeding vertical cylinder, the lower end of the inner tube is a inclined surface structure, and the lower part of the side wall of the inner tube is provided with a discharge port matched with the inclined pipe, the top of the cover body is fixed with a door-shaped support, and the inner side of the door-shaped support is provided with hydraulic oil cylinders on both sides for lifting the inner tube.

[0013] In this preferred solution, the inner tube is lifted and adjusted by the hydraulic oil cylinder, so that the discharge port and the inclined pipe are aligned and staggered, and the switching between the conduction state and the sealing state is realized. At the same time, combined with the linkage assembly, the U-shaped frame can be lifted with the trigger plate when the inner tube moves downward, and the sealing cylinder can be pulled up through the matched protruding pins, so that the circular material port on the sealing cylinder and the inclined pipe are communicated, and the material in the feeding hopper can enter the feeding vertical cylinder through the inner tube and the inclined pipe. When the U-shaped frame is no longer supported by the protruding pins due to the self-weight during the upward movement of the inner tube, the sealing cylinder moves downward under the action of the third spring to reset, so that the circular material port on the sealing cylinder and the inclined pipe are staggered to realize sealing.

[0014] As a further optimization of the technical solution, the coal pyrolysis device, the upper feeding assembly comprises an outer cylinder arranged vertically, the top of the outer cylinder is an open structure, and an inner tube is arranged in the inner side of the outer cylinder, the top of the inner tube is provided with a feeding hopper, the lower part of one side of the outer cylinder is provided with a inclined pipe communicating with the outer cylinder and the feeding vertical cylinder, the lower end of the inner tube is a inclined surface structure, and the lower part of the side wall of the inner tube is provided with a discharge port matched with the inclined pipe, the top of the cover body is fixed with a door-shaped support, and the inner side of the door-shaped support is provided with hydraulic oil cylinders on both sides for lifting the inner tube.

[0015] In the preferred embodiment, the production site is leveled and a ring-shaped guide channel is arranged, the roller is arranged in the ring-shaped channel, and the roller is driven to rotate to drive the lower shell to rotate.

[0016] As a further optimization of the technical solution, the lower rotating disc of the coal pyrolysis device is provided with reinforcing ribs arranged in a ring shape at equal distances.

[0017] As a further optimization of the technical solution, the heating assembly of the coal pyrolysis device comprises a ring-shaped block fixed above the rotating support, the outer circumferential surface of the ring-shaped block is provided with heating units arranged in a ring shape at equal distances, and the heating units comprise electric heating rods fixed on the outer circumferential surface of the ring-shaped block.

[0018] As a further optimization of the technical solution, the outer circumferential surface of the electric heating rod is sleeved with a heat-conducting sleeve, the inner side of the heat-conducting sleeve is provided with a fifth spring close to the electric heating rod, the outer circumferential surface of the heat-conducting sleeve is provided with arc-shaped blocks arranged at equal distances at the lower part, and the inner circumferential surface of the ring-shaped frame is provided with arc-shaped protrusions arranged in a ring shape at equal distances.

[0019] A process method of a coal pyrolysis device comprises the following steps:

[0020] S1: feeding, when in use, the mixed material formed by the coal material to be pyrolyzed and the solid heat carrier is put into the feeding hopper, the solid heat carrier can be hot semi-coke, hot iron ball, hot porcelain ball and similar solids which are easy to separate from semi-coke or do not need to be separated but do not affect the product quality of the semi-coke, the heat of the hot solid heat carrier is transferred to the cold dried crushed coal to cause pyrolysis reaction, and the advantages of the design scheme of the present application include but are not limited to that the coal treated by the device has a particle size range of mm or less of crushed coal, then the inner tube and the feeding hopper are driven to descend by controlling the hydraulic oil cylinder, in the descending process, the U-shaped frame is tilted upward under the action of the cross frame and the U-shaped frame, the trigger plate arranged in cooperation is used to pull up the sealing cylinder through the two protruding pins until the circular material port on the sealing cylinder and the discharge port on the inner tube are both in communication with the inclined pipe, at this time, the mixed material cannot pass through the discharge pipe due to the arrangement of the first spring, the hollow shaft reduction motor drives the stirring main shaft to rotate to drive the auger blade to rotate, and the speed of the falling mixed material can be controlled;

[0021] S2: temperature stirring, temperature is increased by controlling the electric heating rod in the temperature increasing assembly, and heat is conducted to the mixture by the heat conducting sleeve and the electric heating rod, the electric heating rod is set to increase the heat exchange area, and the rotating stirring assembly stirs the material, during the stirring process, the hollow shaft reduction motor can be controlled to alternately rotate forwards and reversely, so that the mixture is alternately gathered to the inner side and the outer side of the lower disc, the mixing effect is achieved, the pyrolysis degree is improved, and the pyrolysis gas discharged from the gas outlet pipe is collected by the external gas collecting device;

[0022] S3: unloading, during the unloading process, the hydraulic oil cylinder is controlled to shrink to the maximum position, then the sealing cylinder is lifted by cooperating with the linkage assembly, and the stirring spindle is lifted to the maximum position, so that the annular limiting cap drives the stirring assembly to move upwards, so that the processing gap is formed between the conical table and the discharge pipe, so that the mixed material after reaction passes through the gap and is discharged from the discharge pipe, during the discharging process, the hollow shaft reduction motor is controlled to work, and the arc-shaped scraper is arranged, so that the mixed material after reaction is gathered to one side of the discharge pipe, the discharging speed is accelerated, and the second spring is arranged to keep the arc-shaped scraper in close contact with the bottom surface of the lower disc, so that the bottom of the lower disc can be scraped;

[0023] S4: equipment cleaning, the air inlet at the top of the stirring spindle is connected with the rotating air connection head, and external high-pressure gas is connected, during the cleaning process, the hydraulic oil cylinder is controlled to work, the inner pipe is lifted, the sealing cylinder and the stirring spindle are lifted by cooperating with the linkage assembly, the multi-bar and the sealing column are separated, so that the high-pressure gas flow is released from the one-way air nozzle in the air blowing hole, and the inner wall space of the lower disc and the cover body is blown and cleaned.

[0024] As can be known from the above, the beneficial effects in the application are:

[0025] By setting the heating assembly, the coal can be actively heated, more convenient to control the pyrolysis degree of coal mine, can rotate with the rotation of the stirring spindle, the heating unit rotates in the coal, can be more fully contacted with the coal, improve the heat exchange effect, combined with the setting of the stirring assembly can be through the control of the stirring spindle rotation direction, cooperate with the arc scraper on the stirring assembly to achieve the effect of dispersing and gathering coal, combined with the setting of the lifting adjusting stirring spindle, can adjust the size of the gap between the frustum and the discharge pipe, so as to achieve the purpose of sealing or discharging, combined with the rotating arc scraper, the coal can be gathered to the discharge pipe position, which is helpful to discharge, combined with the setting of the feeding assembly and the sealing cylinder assembly, under the action of the linkage assembly, the sealing cylinder and the inner tube can be connected, the communication between the cover body and the outside is cut off, the sealing is realized, which is helpful to the heat preservation of the coal in the cover body, improves the pyrolysis effect, and avoids the overflow of the pyrolysis gas, combined with the setting of the rotatable lower shell, combined with the setting of the arc convex block, the heat conduction sleeve and the arc block can change the position along the radial direction of the lower rotating disc during the rotation process, change the heating area, which is helpful to uniform heating. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 A structure diagram of a coal pyrolysis device is provided for the present application;

[0027] Figure 2 A structure diagram of a coal pyrolysis device is provided for the present application;

[0028] Figure 3 A structure diagram of a coal pyrolysis device is provided for the present application;

[0029] Figure 4 A structure diagram of a coal pyrolysis device is provided for the present application;

[0030] Figure 5 A structure diagram of a coal pyrolysis device is provided for the present application;

[0031] Figure 6 A structure diagram of a coal pyrolysis device is provided for the present application;

[0032] Figure 7 A structure diagram of a coal pyrolysis device is provided for the present application;

[0033] Figure 8 A structure diagram of a coal pyrolysis device is provided for the present application;

[0034] Figure 9A structure schematic diagram of a heating assembly of a coal pyrolysis device is provided in the present application.

[0035] Figure 10 A structure schematic diagram of a heating assembly of a coal pyrolysis device is provided in the present application.

[0036] Figure 11 A structure schematic diagram of a heating assembly of a coal pyrolysis device is provided in the present application.

[0037] Figure 12 A structure schematic diagram of a heating assembly of a coal pyrolysis device is provided in the present application.

[0038] In the figure: 1, upper shell; 101, annular cover; 102, cover body; 103, liquid inlet pipe; 104, motor support; 105, feeding vertical cylinder; 106, trigger plate; 107, door-shaped support; 108, gas outlet pipe; 2, annular water seal groove; 3, walking mechanism; 301, driving motor; 302, roller; 4, lower shell; 401, lower turntable; 4011, discharge pipe; 4012, reinforcing rib; 402, annular frame; 4021, arc-shaped protrusion; 403, annular water seal cover; 5, hydraulic oil cylinder; 6, sealing cylinder assembly; 601, sealing cylinder; 602, protruding pin; 7, stirring mechanism; 701, stirring main shaft; 7011, auger blade; 7012, multi-lug rod; 7013, annular limiting cap; 702, heating assembly; 7021, annular block; 70211, electric heating rod; 7022, heat conduction sleeve; 70221, arc-shaped block; 7023, fifth spring; 703, stirring assembly; 7031, conical table; 7032, rotating support; 70321, air blowing hole; 70322, sealing column; 70323, first spring; 7033, arc-shaped arm; 7034, second spring; 7035, guide insertion rod; 7036, arc-shaped scraper; 70361, arc-shaped baffle; 70362, insertion hole; 704, third spring; 705, hollow shaft reduction motor; 8, feeding assembly; 801, feeding hopper; 802, inner tube; 8021, discharge port; 803, guide plate; 804, outer cylinder; 805, inclined pipe; 806, protruding platform; 807, fourth spring; 9, linkage assembly; 901, U-shaped frame; 902, cross frame. DETAILED DESCRIPTION

[0039] The present application will be described in greater detail by reference to the embodiments of the present application. Figures 1-12 The technical solutions in the embodiments of the present application are described clearly and completely, obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0040] ReferenceFigures 1-12 The utility model provides a coal pyrolysis device, including upper casing 1, the lower part rotation of inside lower casing 4 is provided with in upper casing 1, be provided with sealing structure between upper casing 1 and lower casing 4, the inside of upper casing 1 is provided with stirring mechanism 7, the upper part of upper casing 1 is provided with the feeding assembly 8 that communicates the inner wall of upper casing 1, the lower part of lower casing 4 is provided with the travelling mechanism 3 of driving its rotation, the lower part of lower casing 4 is the taper surface structure, the lower part of lower casing 4 is provided with the discharge pipe 4011 that communicates its inside,

[0041] Stirring mechanism 7 includes stirring spindle 701, the upper part of upper casing 1 is provided with hollow shaft reduction motor 705 of driving stirring spindle 701 rotation, the inside of output shaft of hollow shaft reduction motor 705 is provided with guide convex rib, the outer circumferential surface of stirring spindle 701 is provided with guide groove that is adapted with guide convex rib, the lower part of stirring spindle 701 is sequentially provided with temperature rising assembly 702 and stirring assembly 703;

[0042] Stirring assembly 703 includes rotating support 7032, the outer circumferential surface of rotating support 7032 is provided with multiple arc arms 7033 that are annularly distributed, the arc arm 7033 is provided with arc slide on, and the arc slide is slidably provided with arc scraper 7036 in, one end of arc slide inside is fixed with guide insertion rod 7035, one end of arc scraper 7036 is provided with insertion hole 70362 that is adapted with guide insertion rod 7035, guide insertion rod 7035 is inserted in insertion hole 70362, the outer circumferential surface of guide insertion rod 7035 is provided with second spring 7034 near the upper position of arc scraper 7036, the lower part of rotating support 7032 is provided with conical table 7031 that is adapted with discharge pipe 4011, the inside of rotating support 7032 is hollow structure, and the outside of rotating support 7032 is provided with blow hole 70321 that communicates its inside, and one-way air nozzle is arranged in blow hole 70321, the lower part of stirring spindle 701 is provided with multiple rib rods 7012, the upper part of rotating support 7032 is provided with multiple rib insertion holes that are adapted with multiple rib rods 7012, the lower part of multiple rib rods 7012 is provided with annular limit cap 7013 near the inside position of rotating support 7032, the upper part of stirring spindle 701 and multiple rib rods 7012 is provided with air inlet hole along the axial direction, the lower part of rotating support 7032 inside is provided with sealing column 70322, sealing column 70322 is coaxially arranged with air inlet hole, and sealing column 70322 is adapted with the specification of air inlet hole, the outer circumferential surface of sealing column 70322 is provided with first spring 70323, the upper part of upper casing 1 is provided with linkage assembly 9 that realizes the lifting adjustment of stirring mechanism 7, the upper part of arc scraper 7036 is provided with arc baffle 70361 near the outside position of rotating support 7032.

[0043] Refer to the drawings Figure 1 - theFigure 4 The upper shell 1 comprises a cover 102, an annular cover 101 is arranged on the outer circumferential surface of the cover 102 in a ring shape, a liquid inlet pipe 103 is arranged on the annular cover 101, a motor support 104 is arranged on the top of the cover 102, a hollow shaft reduction motor 705 is fixed on the top of the motor support 104, a passage for the stirring main shaft 701 is arranged on the upper portion of the motor support 104, a feeding vertical cylinder 105 is coaxially arranged at the middle position of the top of the cover 102, an air outlet pipe 108 is arranged on the top of the cover 102 and communicates with the inside of the cover 102, and the upper shell 1 is installed at a suitable position in the production site through a support structure such as a bracket during installation.

[0044] Refer to the attached Figure 2 and the attached Figure 3 The lower shell 4 comprises a lower turntable 401, an annular frame 402 is arranged on the upper portion of the lower turntable 401, an annular water seal cover 403 is arranged on the outer circumferential surface of the annular frame 402, the sealing structure comprises an annular water seal groove 2 fixed on the outer circumferential surface of the annular frame 402, and the lower edge of the annular water seal cover 403 and the lower edge of the cover 102 are located in the annular water seal groove 2.

[0045] Refer to the attached Figure 2 and the attached Figure 5 The feeding assembly 8 comprises a vertically arranged outer cylinder 804, the top of the outer cylinder 804 is an open structure, an inner tube 802 is inserted into the inner side of the outer cylinder 804, a feeding hopper 801 is arranged on the top of the inner tube 802, an inclined pipe 805 is arranged on one side of the lower portion of the outer cylinder 804 and communicates with the feeding vertical cylinder 105, the lower end of the inner tube 802 is a slope structure, a discharge port 8021 adapted to the inclined pipe 805 is arranged on the lower portion of the side wall of the inner tube 802, a door-shaped support 107 is fixed on the top of the cover 102, and hydraulic oil cylinders 5 for lifting the inner tube 802 are arranged on both sides of the inner side of the door-shaped support 107.

[0046] Refer to the attached Figure 2 -attached Figure 4 and the attached Figure 6A sealing cylinder assembly 6 is inserted inside the feed vertical cylinder 105. The sealing cylinder assembly 6 includes a sealing cylinder 601 inserted inside the feed vertical cylinder 105. Spiral auger blades 7011 are arranged on the outer circumference of the stirring main shaft 701 near the inner side of the sealing cylinder 601. A circular feed port adapted to the feed vertical cylinder 105 is provided on the side of the sealing cylinder 601 near the inclined tube 805. The lower part of the sealing cylinder 601 is open, and the upper part of the sealing cylinder 601 is provided with a circular through hole for the stirring main shaft 701 to pass through. The stirring main shaft 701 is rotatably connected to the inner wall of the circular through hole through a bearing. A third spring 704 is fitted on the outer circumference of the stirring spindle 701 near the upper part of the sealing cylinder 601. The linkage assembly includes a crossbeam 902 fixed at the upper part of the outer circumference of the inner tube 802. The telescopic end of the hydraulic cylinder 5 passes through the portal bracket 107 and is fixedly connected to the bottom two sides of the crossbeam 902. A U-shaped frame 901 is hinged to the side of the crossbeam 902 near the feed vertical cylinder 105. The sealing cylinder 601 passes through the U-shaped frame 901. Protruding pins 602 are provided on both sides of the sealing cylinder 601 near the upper part of the U-shaped frame 901. A trigger plate 106 is provided on the upper part of the side wall of the feed vertical cylinder 105. The upper part of the trigger plate 106 contacts the lower side of the U-shaped frame 901. A vertically arranged guide plate 803 is provided on one side of the bottom of the cross frame 902. A rectangular slide rail for sliding the guide plate 803 is provided on the outer circumference of the outer cylinder 804. A vertically arranged boss 806 is provided at the lower part of the inner tube 802. A fourth spring 807 is fixedly installed at the lower part of the boss 806. Here, the inner tube 802 is adjusted by the lifting and lowering of the hydraulic cylinder 5, thereby aligning and staggering the discharge port 8021 and the inclined tube 805, realizing the switching between the conducting state and the sealing state. At the same time, combined with the set linkage component, as the inner tube... The downward movement of 802, combined with the trigger plate 106, can cause the U-shaped frame 901 to tilt upward. With the help of the protruding pin 602, the sealing cylinder 601 can be pulled upward, thereby connecting the circular material inlet on the sealing cylinder 601 and the inclined tube 805. This allows the material in the feeding hopper 801 to pass through the inner tube 802 and the inclined tube 805 into the feeding vertical cylinder 105. When the inner tube 802 moves upward, the U-shaped frame 901, under its own weight, no longer supports the protruding pin 602. As a result, the sealing cylinder 601 moves downward and resets under the action of the third spring 704, thereby misaligning the circular material inlet on the sealing cylinder 601 and the inclined tube 805 to achieve a seal.

[0047] See attached document Figure 2 The walking mechanism 3 includes a drive motor 301 fixed at the lower edge of the lower housing 4. A roller 302 is fixed on the output shaft of the drive motor 301. The output shaft of the drive motor 301 is arranged radially along the lower housing 4 to level the production site and set an annular guide channel. The roller 302 is placed in the annular channel and driven to rotate, thereby driving the lower housing 4 to rotate.

[0048] The lower part of the lower turntable 401 is provided with reinforcing ribs 4012 arranged in a ring shape at equal distances.

[0049] Referring to the accompanying drawings Figure 7 , the accompanying drawings Figure 8 , the accompanying drawings Figure 9 , and the accompanying drawings Figure 10 , the heating assembly 702 includes an annular block 7021 fixed above the rotating support 7032, the outer circumferential surface of the annular block 7021 is provided with heating units arranged in a ring shape at equal distances, the heating units include electric heating rods 70211 fixed on the outer circumferential surface of the annular block 7021, the outer circumferential surface of the electric heating rods 70211 is sleeved with a heat-conducting sleeve 7022, the inner side of the heat-conducting sleeve 7022 is provided with a fifth spring 7023 close to the position of the electric heating rods 70211, the outer circumferential surface of the heat-conducting sleeve 7022 is provided with arc blocks 70221 arranged at equal distances in the lower part, and the inner circumferential surface of the annular frame 402 is provided with arc protrusions 4021 arranged in a ring shape at equal distances.

[0050] A process method of a coal pyrolysis device, comprising the following steps:

[0051] S1: feeding, when in use, the mixed material formed by the coal material needing to be pyrolyzed and the solid heat carrier is put into the feeding hopper 801, the solid heat carrier can be hot semicoke, hot iron ball, hot porcelain ball and the like similar solid which is easy to separate or does not need to be separated from the semicoke but does not affect the product quality of the semicoke, the heat of the hot solid heat carrier is transferred to the cold dried crushed coal to make it have a pyrolysis reaction, the advantages of the design scheme of the present application include but are not limited to that the coal treated by the device has a particle size range of 25 mm or less of crushed coal, then the inner tube 802 and the feeding hopper 801 are driven to descend by controlling the hydraulic oil cylinder 5 to work, in the descending process, under the action of the cross frame 902 and the U-shaped frame 901, the trigger plate 106 arranged in cooperation is used to realize the upward inclination of the U-shaped frame 901, so as to cooperate with the two protruding pins 602, pull the sealing cylinder 601 upward, until the circular material port on the sealing cylinder 601 and the discharge port 8021 on the inner tube 802 are both in communication with the inclined pipe 805, at this time, due to the arrangement of the first spring 70323, the sealing column 70322 is still in the state of sealing the discharge pipe 4011, at this time, the entering mixed material will not pass through the discharge pipe 4011, the hollow shaft reduction motor 705 drives the stirring main shaft 701 to rotate, drives the auger blade 7011 to rotate, and the speed of the falling mixed material can be controlled;

[0052] S2: heating and stirring, heating is carried out by controlling the electric heating rod 70211 in the heating assembly 702, and heat is conducted to the mixture by the heat conduction sleeve 7022 and the electric heating rod 70211. The electric heating rod 70211 increases the heat exchange area, and the rotating stirring assembly 703 stirs the material. During the stirring process, the hollow shaft reduction motor 705 can be controlled to rotate forward and reverse alternately, so that the mixture is alternately gathered to the inside and outside of the lower disc 401, achieving mixing effect, which helps to improve the degree of pyrolysis. The external gas collecting device collects the pyrolysis gas discharged from the gas outlet pipe 108;

[0053] S3: discharging, during the discharging process, the hydraulic oil cylinder 5 is controlled to shrink to the maximum position, then the sealing cylinder 601 is lifted by cooperating with the linkage assembly 9, and the stirring spindle 701 is lifted to the maximum position, so that the annular limiting cap 7013 drives the stirring assembly 703 to move up together, so that the processing gap is formed between the conical table 7031 and the discharge pipe 4011, so that the mixed material after reaction passes through the gap and is discharged from the discharge pipe 4011. During the discharging process, the hollow shaft reduction motor 705 is controlled to work, and the arc-shaped scraper 7036 is arranged to realize that the disordered material after reaction is gathered to one side of the discharge pipe 4011, so as to accelerate the discharging. The second spring 7034 is arranged to keep the arc-shaped scraper 7036 in close contact with the bottom surface of the lower disc 401, so as to scrape the bottom of the lower disc 401;

[0054] S4: equipment cleaning, the gas inlet at the top of the stirring spindle 701 is connected by rotating the gas connection head, and high-pressure gas is connected from the outside. During the cleaning process, the hydraulic oil cylinder 5 is controlled to work, the inner tube 802 is lifted, the sealing cylinder 601 and the stirring spindle 701 are lifted by cooperating with the linkage assembly 9, the multi-bar 7012 and the sealing column 70322 are separated, so that the high-pressure gas flow is released from the one-way air nozzle in the air blowing hole 70321, and the inner wall space of the lower disc 401 and the cover body 102 is blown and cleaned.

[0055] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0056] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0057] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0058] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A coal pyrolysis device comprising an upper shell (1), a lower shell (4) is rotatably arranged inside the lower part of the upper shell (1), characterized in that, The upper shell (1) and the lower shell (4) are provided with a sealing structure, the inside of the upper shell (1) is provided with a stirring mechanism (7), the upper part of the upper shell (1) is provided with a feeding assembly (8) communicating with the inner wall of the upper shell (1), the lower part of the lower shell (4) is provided with a walking mechanism (3) driving it to rotate, the lower part of the lower shell (4) is in a conical surface structure, and the lower part of the lower shell (4) is provided with a discharge pipe (4011) communicating with the inside thereof; The stirring mechanism (7) comprises a stirring main shaft (701), the upper part of the upper shell (1) is provided with a hollow shaft reduction motor (705) driving the stirring main shaft (701) to rotate, the inside of the output shaft of the hollow shaft reduction motor (705) is provided with a guide convex rib, the outer circumferential surface of the stirring main shaft (701) is provided with a guide groove matched with the guide convex rib, and the lower part of the stirring main shaft (701) is sequentially provided with a temperature rising assembly (702) and a stirring assembly (703); The stirring assembly (703) comprises a rotating support (7032), the outer circumferential surface of the rotating support (7032) is provided with a plurality of arc-shaped arms (7033) distributed in an annular shape, the arc-shaped arms (7033) are provided with arc-shaped slides, the arc-shaped slides are slidably provided with arc-shaped scrapers (7036) in the arc-shaped slides, one end of the inside of the arc-shaped slide is fixedly provided with a guide insertion rod (7035), one end of the arc-shaped scraper (7036) is provided with an insertion hole (70362) matched with the guide insertion rod (7035), the guide insertion rod (7035) is inserted into the insertion hole (70362), a second spring (7034) is sleeved on the outer circumferential surface of the guide insertion rod (7035) close to the upper part of the arc-shaped scraper (7036), the lower part of the rotating support (7032) is provided with a conical frustum (7031) matched with the discharge pipe (4011), the inside of the rotating support (7032) is in a hollow structure, the outside of the rotating support (7032) is provided with a blowing hole (70321) communicating with the inside thereof, and a one-way air nozzle is arranged in the blowing hole (70321), the lower part of the stirring main shaft (701) is provided with a multi-lug rod (7012), the upper part of the rotating support (7032) is provided with a multi-lug insertion hole matched with the multi-lug rod (7012), the lower part of the multi-lug rod (7012) is provided with an annular limiting cap (7013) close to the inside of the rotating support (7032), the stirring main shaft (701) and the multi-lug rod (7012) are provided with air inlet holes in the axial direction, the inside of the lower part of the rotating support (7032) is provided with a sealing column (70322), the sealing column (70322) is coaxially arranged with the air inlet hole, and the sealing column (70322) is matched with the specification of the air inlet hole, the outer circumferential surface of the sealing column (70322) is sleeved with a first spring (70323), the upper part of the upper shell (1) is provided with a linkage assembly (9) achieving the lifting adjustment of the stirring mechanism (7), and the upper part of the arc-shaped scraper (7036) is provided with an arc-shaped baffle (70361) close to the outside of the rotating support (7032).

2. A coal pyrolysis apparatus according to claim 1, wherein The upper shell (1) comprises a cover body (102), an annular cover (101) is arranged on the outer circumferential surface of the cover body (102) in a ring shape, a liquid inlet pipe (103) is arranged on the annular cover (101), a motor support (104) is arranged on the top of the cover body (102), the hollow shaft reduction motor (705) is fixed on the top of the motor support (104), a passage for the stirring main shaft (701) is arranged on the upper portion of the motor support (104), a feeding vertical cylinder (105) is coaxially arranged at the middle position of the top of the cover body (102), and a gas outlet pipe (108) is arranged on the top of the cover body (102) and communicates with the inside of the cover body (102).

3. A coal pyrolysis apparatus according to claim 2, wherein The lower shell (4) comprises a lower rotating disc (401), an annular frame (402) is arranged on the upper portion of the lower rotating disc (401), an annular water seal cover (403) is arranged on the outer circumferential surface of the annular frame (402), the sealing structure comprises an annular water seal groove (2) fixed on the outer circumferential surface of the annular frame (402), and the lower edge of the annular water seal cover (403) and the lower edge of the cover body (102) are arranged in the annular water seal groove (2).

4. A coal pyrolysis apparatus according to claim 3, wherein The feeding assembly (8) comprises a vertically arranged outer cylinder (804), the top of the outer cylinder (804) is an open structure, an inner pipe (802) is inserted into the inner side of the outer cylinder (804), the top of the inner pipe (802) is provided with a feeding hopper (801), a slope pipe (805) is arranged on one side of the lower portion of the outer cylinder (804) and communicates with the outer cylinder (804) and the feeding vertical cylinder (105), the lower end of the inner pipe (802) is a slope structure, a discharge port (8021) matched with the slope pipe (805) is arranged on the lower portion of the side wall of the inner pipe (802), and the top of the cover body (102) is fixed with a door-shaped support (107), the inner side of the door-shaped support (107) is provided with hydraulic oil cylinders (5) for lifting the inner pipe (802) on both sides.

5. A coal pyrolysis apparatus according to claim 4, wherein A sealing cylinder assembly (6) is inserted inside the feed vertical cylinder (105). The sealing cylinder assembly (6) includes a sealing cylinder (601) inserted inside the feed vertical cylinder (105). Spiral auger blades (7011) are arranged on the outer circumference of the stirring main shaft (701) near the inner side of the sealing cylinder (601). A circular material that matches the feed vertical cylinder (105) is provided on the side of the sealing cylinder (601) near the inclined tube (805). The sealing cylinder (601) has an open lower part and a circular through hole for the stirring shaft (701) to pass through at the upper part. The stirring shaft (701) is rotatably connected to the inner wall of the circular through hole via a bearing. A third spring (704) is sleeved on the outer circumferential surface of the stirring shaft (701) near the upper part of the sealing cylinder (601). The linkage assembly includes a crossbeam (902) fixed at the upper part of the outer circumferential surface of the inner tube (802). The telescopic end of the hydraulic cylinder (5) passes through the portal bracket (107) and is fixedly connected to the bottom sides of the cross frame (902). A U-shaped frame (901) is hinged to the side of the cross frame (902) near the feed vertical cylinder (105). The sealing cylinder (601) passes through the U-shaped frame (901). A protruding pin (602) is provided on both sides of the sealing cylinder (601) near the upper part of the U-shaped frame (901). The upper part of the side wall of the feed vertical cylinder (105) is provided with A trigger plate (106) is provided, the upper part of which contacts the lower side of the U-shaped frame (901). A vertically arranged guide plate (803) is provided on one side of the bottom of the cross frame (902). A rectangular slide is provided on the outer circumference of the outer cylinder (804) for the guide plate (803) to slide. A vertically arranged boss (806) is provided at the lower part of the inner tube (802). A fourth spring (807) is fixedly provided at the lower part of the boss (806).

6. A coal pyrolysis apparatus according to claim 5, wherein The walking mechanism (3) includes a drive motor (301) fixed at the lower edge of the lower housing (4). A roller (302) is fixed on the output shaft of the drive motor (301), and the output shaft of the drive motor (301) is arranged radially along the lower housing (4).

7. A coal pyrolysis apparatus according to claim 6, wherein The lower turntable (401) is provided with reinforcing ribs (4012) that are evenly spaced and distributed in a ring.

8. A coal pyrolysis apparatus according to claim 7, wherein The heating component (702) includes an annular block (7021) fixed above the rotating bracket (7032). The outer peripheral surface of the annular block (7021) is provided with heating units that are evenly distributed in a ring. The heating unit includes an electric heating rod (70211) fixed on the outer peripheral surface of the annular block (7021).

9. A coal pyrolysis apparatus according to claim 8, wherein A heat-conducting sleeve (7022) is fitted on the outer circumferential surface of the heating rod (70211). A fifth spring (7023) is provided on the inner side of the heat-conducting sleeve (7022) near the heating rod (70211). Arc-shaped blocks (70221) are evenly distributed at the lower part of the outer circumferential surface of the heat-conducting sleeve (7022). Arc-shaped protrusions (4021) are evenly distributed in a ring on the inner circumferential surface of the annular frame (402).

10. A process for the pyrolysis of coal as claimed in claim 9 wherein, It comprises the following steps: S1: feeding, when using, the coal material that needs to be pyrolyzed and the solid heat carrier together form a mixture, put into the feeding hopper (801), the solid heat carrier is hot semi-coke, hot iron ball or hot porcelain ball, the heat of the hot solid heat carrier is transferred to the cold dried crushed coal, so that the pyrolysis reaction occurs, then through the control of hydraulic cylinder (5), the inner tube (802) and the feeding hopper (801) are driven to descend, in the process of descending, under the action of cross frame (902) and U-shaped frame (901), cooperating with the trigger plate (106) arranged, the U-shaped frame (901) is inclined upward, so as to cooperate with the two protruding pins (602), pull up the sealing cylinder (601), until the circular material port on the sealing cylinder (601) and the discharge port (8021) on the inner tube (802) are connected with the inclined pipe (805), at this time, due to the arrangement of the first spring (70323), the sealing column (70322) is still in the sealed state with the discharge pipe (4011), at this time, the entering mixture will not pass through the discharge pipe (4011), the hollow shaft reduction motor (705) drives the stirring spindle (701) to rotate, driving the auger blade (7011) to rotate, which can control the speed of the mixture falling; S2: heating and stirring, heating is carried out by controlling the electric heating rod (70211) in the heating assembly (702), and the heat is conducted to the mixture through the heat conducting sleeve (7022) and the electric heating rod (70211), the electric heating rod (70211) increases the heat exchange area, and the rotating stirring assembly (703) stirs the material, during the stirring process, the hollow shaft reduction motor (705) can be controlled to rotate forward and reverse alternately, so as to alternately gather the mixture to the inside and outside of the lower disc (401), achieving the mixing effect, which helps to improve the degree of pyrolysis, and the pyrolysis gas discharged from the gas outlet pipe (108) is collected by the external gas collecting device; S3: unloading, during the unloading process, the hydraulic cylinder (5) is controlled to shrink to the maximum position, then the sealing cylinder (601) is lifted up cooperating with the linkage assembly (9), at the same time, the stirring spindle (701) is moved up to the maximum position, so that the annular limiting cap (7013) drives the stirring assembly (703) to move up together, so that the processing gap is formed between the conical table (7031) and the discharge pipe (4011), so that the reacted mixture passes through the gap and is discharged from the discharge pipe (4011), during the discharging process, the hollow shaft reduction motor (705) is controlled to work, cooperating with the arc-shaped scraper (7036), realizing the gathering of the reacted mixture to one side of the discharge pipe (4011), accelerating the discharging, at the same time, the second spring (7034) keeps the arc-shaped scraper (7036) in close contact with the bottom surface of the lower disc (401), which can scrape the bottom of the lower disc (401); S4; equipment cleaning, by rotating the gas connection head connected to the top of the air inlet of the stirring spindle (701), access to the outside high pressure gas, in the cleaning process, control the hydraulic oil cylinder (5) work, drive the inner tube (802) up, with linkage assembly (9) driven sealing cylinder (601) and stirring spindle (701) up, realize the separation of multi-lattice rod (7012) and sealing column (70322), so that the high pressure gas flow through the air inlet hole by blowing hole (70321) from the one-way air nozzle release, to the lower turntable (401) and cover (102) of the inner wall space for blowing cleaning.

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