Environment-friendly intelligent coal chemical furnace slag recovery treatment system

Abstract

The invention relates to the technical field of coal chemical furnace slag environment-friendly treatment, in particular to an environment-friendly intelligent coal chemical furnace slag recovery treatment system which comprises a main incinerator body, feeding equipment, an oscillation smashing mechanism, a heating water tank, a returned slag incineration device and a separated slag smashing device. A transition incineration chamber and an auxiliary incineration chamber are arranged on the left side and the right side of the upper portion of the main incinerator body correspondingly, a heating water tank used for recycling slag incineration heat is arranged between the transition incineration chamber and the auxiliary incineration chamber, the oscillation smashing mechanism is fixedly installed on the upper portion of the transition incineration chamber, and feeding equipment is arranged on the left side of the upper portion of the oscillation smashing mechanism. The feeding device comprises a feeding box, and an adjustable conveying device is arranged in the feeding box. According to the invention, the oscillating crushing mechanism is adopted to perform rotary self-adaptive crushing on slag at a certain feeding speed, and a driving mechanism for extrusion of multiple layers of eccentric rollers in the oscillating crushing mechanism is adopted, so that the extrusion resistance is reduced, the rotary clamping phenomenon is avoided, and the oscillating crushing device can adapt to particle sizes.

Description

Technical Field

[0001] The present invention relates to the technical field of environmentally friendly treatment of coal chemical slag, and in particular to an environmentally friendly intelligent coal chemical slag recovery and treatment system. Background Art

[0002] The storage and landfill of traditional coal chemical solid waste disposal methods occupy a large amount of land resources, and there is a risk of groundwater pollution due to the complex chemical composition of the coal chemical process. Coal chemical solid incineration is a coal chemical solid waste treatment method that is currently widely used. It can not only achieve the effect of volume reduction, but also basically achieve harmless treatment, and can be used for waste heat recovery. It is an important way to recycle resources and improve energy efficiency, especially for areas with scarce land resources. The environmental adaptability of coal chemical solid incineration is very high. The incinerator currently used uses gas or fuel as an auxiliary to achieve the complete incineration of solid slag, but due to the different particle sizes of solid waste, it is not fully burned in the combustion furnace, which restricts the efficiency of combustion treatment and easily causes waste of auxiliary fuel. Therefore, in order to solve the problems of low combustion efficiency and incomplete combustion of existing slag, there is an urgent need for an intelligent coal chemical slag recovery and treatment system with slag return crushing and step-by-step separation combustion. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an environmentally friendly intelligent coal chemical slag recovery and treatment system in view of the deficiencies in the prior art.

[0004] The technical problem to be solved by the present invention is achieved through the following technical solutions. The present invention discloses an environmentally friendly intelligent coal chemical slag recovery and processing system, including a main incineration furnace body, a feeding device, an oscillating crushing mechanism, a heating water tank, a slag return incineration device and a slag separation crushing device. A transition incineration chamber and an auxiliary incineration chamber are respectively arranged on the left and right sides of the upper part of the main incineration furnace body. A heating water tank for recovering the heat of slag incineration is arranged between the transition incineration chamber and the auxiliary incineration chamber. The oscillating crushing mechanism is fixedly installed on the upper part of the transition incineration chamber. A feeding device is arranged on the left side of the upper part of the oscillating crushing mechanism. The feeding device includes a feeding box. An adjustable conveying device is arranged inside the feeding box. The adjustable conveying device includes a conveyor belt. A feeding port is arranged on the left side of the upper part of the feeding box. The right side of the lower part of the feeding box is connected to the oscillating crushing mechanism. The right side of the oscillating crushing mechanism is connected to the slag return incineration device. The slag return incineration device is installed on the upper part of the auxiliary incineration chamber. The slag return incineration device is provided with a slag separation crushing device for secondary crushing and incineration.

[0005] Furthermore, a heating base is installed at the bottom of the main incinerator body, a heat insulation layer is provided on the outside of the main incinerator body, the cross-section of the heating base is U-shaped, and the bottom of the main incinerator body is movably installed above the heating base.

[0006] Furthermore, the oscillating crushing mechanism includes an outer shell, an oscillating crushing outer cylinder, a driving cylinder and an eccentric driving shaft. The outer shell is in the shape of a horizontal flat cylinder as a whole. The oscillating crushing outer cylinder is a single-layer plate cylinder for extruding slag. The driving cylinder is installed inside the oscillating crushing outer cylinder. A slope driving block is provided on the outside of the driving cylinder. An extrusion driving column corresponding to each slope driving block is provided between the slope driving block and the oscillating crushing outer cylinder. The eccentric driving shaft is coaxial with the oscillating crushing outer cylinder, and the shaft end of the eccentric driving shaft is connected to an external motor speed regulation driving mechanism.

[0007] Furthermore, the ramp driving blocks are sequentially arranged along the outer circumference of the driving cylinder in the circumferential direction, and the ramp driving blocks extend axially along the axial direction of the driving cylinder, and a sawtooth shape is formed between adjacent ramp driving blocks on the outer side of the driving cylinder.

[0008] Furthermore, the slag return incineration device includes a slag return curved pipe and a slag delivery straight pipe, the left end of the slag delivery straight pipe is connected to the right side of the lower part of the oscillation crushing mechanism, the right end of the slag delivery straight pipe passes through the auxiliary incineration chamber to form a through opening, the lower end of the slag return curved pipe penetrates into the auxiliary incineration chamber and is connected to the slag delivery straight pipe, and the slag separation and crushing device pushes the slag through the through opening.

[0009] Furthermore, the slag separation and crushing device includes a hydraulic push cylinder and a pushing cylinder. The hydraulic push cylinder is fixedly installed on the outside of the main incineration furnace body. A connecting plug plate is provided at the outer end of the hydraulic push cylinder. The pushing cylinder is slidably inserted into the slag delivery straight pipe against the wall. A sealing plate for pushing the slag is provided at the front end of the pushing cylinder.

[0010] Furthermore, the middle part of the pushing cylinder is welded to the connecting plug plate to form a cavity, and crushing holes are provided on the upper and lower walls of the cavity, and slag leakage holes are provided on the lower wall of the slag delivery straight pipe located in the auxiliary incineration chamber. A shearing effect can be formed between the slag leakage hole and the crushing hole through the relative movement of the pushing cylinder and the slag delivery straight pipe, and the aperture of the slag leakage hole is larger than the aperture of the crushing hole.

[0011] Furthermore, the transition incineration chamber and the auxiliary incineration chamber are both provided with an incineration grid, and the incineration grid is provided with an incineration sieve hole. The bottom of the oscillating crushing mechanism is provided with an arc-shaped screen, and the arc-shaped screen includes a bottom sieve hole, and the aperture of the bottom sieve hole is larger than the incineration sieve hole.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] (1) The present invention adopts an oscillating crushing mechanism to perform rotary adaptive crushing on slag at a certain feeding speed, and an internal multi-layer eccentric roller extrusion driving mechanism, which can reduce the friction and extrusion between the extrusion cylinder and the slag, reduce the extrusion resistance, avoid the rotary jamming phenomenon, and can adapt to the particle size and have adaptability;

[0014] (2) The present invention can adjust the oscillation frequency by speed to achieve gradual crushing and pulverizing. The faster the speed, the smaller the extrusion space, and the more suitable it is for crushing fine slag particles, thereby further improving the adaptability of the equipment to extrusion and pulverization.

[0015] (3) The present invention adopts the method of secondary crushing and incineration through the slag return channel, which can perform multi-channel processing on harder or larger slag, and can form a circular sorting and multiple crushing and incineration treatments, thereby reducing the working pressure of the main crushing and avoiding damage to the crushing tube by the slag, thereby further achieving the purpose of step-by-step crushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 The present invention Figure 1 A partial enlarged view of position A in the middle;

[0018] 1-main incineration furnace body, 11-heating base, 12-transition incineration chamber, 13-auxiliary incineration chamber, 2-feeding equipment, 21-feeding box, 211-adjustable conveying equipment, 212-feeding port, 3-oscillation crushing mechanism, 31-shell, 311-arc screen, 311a-bottom sieve hole, 32-oscillation crushing outer cylinder, 33-driving cylinder, 331-slope driving block, 332-extrusion driving column, 34-eccentric driving shaft, 4-heating water tank, 5-slag return incineration device, 51-slag return curved pipe, 52-slag delivery straight pipe, 521-slag leakage hole, 6-slag separation and crushing device, 61-hydraulic push cylinder, 611-connecting plug plate, 62-pushing cylinder, 7-incineration grid plate, 71-incineration sieve hole. DETAILED DESCRIPTION

[0019] like Figure 1-2As shown, an environmentally friendly intelligent coal chemical slag recovery and treatment system of the present invention comprises a main incinerator body 1, a feeding device 2, an oscillating crushing mechanism 3, a heating water tank 4, a slag return incineration device 5 and a slag separation crushing device 6. A heating base 11 is installed at the bottom of the main incinerator body 1, and a heat insulation layer is provided on the outer side of the main incinerator body 1. The cross-section of the heating base 11 is U-shaped, and the bottom of the main incinerator body 1 is movably installed above the heating base 11. A transition incineration chamber 12 and an auxiliary incineration chamber 13 are respectively provided on the left and right sides of the upper part of the main incinerator body 1, and a heating water tank for recovering the heat of slag incineration is provided between the transition incineration chamber 12 and the auxiliary incineration chamber 13. 4. The oscillating crushing mechanism 3 is fixedly installed on the upper part of the transition incineration chamber 12. A feeding device 2 is provided on the upper left side of the oscillating crushing mechanism 3. The feeding device 2 includes a feeding box 21. An adjustable conveying device 211 is provided inside the feeding box 21. The adjustable conveying device 211 includes a conveyor belt. A feeding port 212 is provided on the upper left side of the feeding box 21. The lower right side of the feeding box 21 is connected to the oscillating crushing mechanism 3. A slag return incineration device 5 is connected to the right side of the oscillating crushing mechanism 3. The slag return incineration device 5 is installed on the upper part of the auxiliary incineration chamber 13. The slag return incineration device 5 is provided with a slag separation crushing device 6 for secondary crushing and incineration.

[0020] The oscillating crushing mechanism 3 includes an outer shell 31, an oscillating crushing outer cylinder 32, a driving cylinder 33 and an eccentric driving shaft 34. The outer shell 31 is in the shape of a horizontal flat cylinder as a whole. The oscillating crushing outer cylinder 32 is a single-layer plate cylinder for extruding slag. The driving cylinder 33 is installed inside the oscillating crushing outer cylinder 32. A slope driving block 331 is provided on the outer side of the driving cylinder 33. An extrusion driving column 332 corresponding to each slope driving block 331 is provided between the slope driving block 331 and the oscillating crushing outer cylinder 32. The eccentric driving shaft 34 is coaxial with the oscillating crushing outer cylinder 32. The eccentric driving shaft 34 is fixedly installed at the eccentric position of the cross section of the driving cylinder 33, and the driving cylinder 33 is fixedly connected to the eccentric driving shaft 34 through its inner rib plate. The shaft end of the eccentric driving shaft 34 is connected to an external motor speed regulation driving mechanism. The ramp drive blocks 331 are arranged in sequence along the outer circumference of the drive cylinder 33 in the circumferential direction, and the ramp drive blocks 331 extend axially along the axial direction of the drive cylinder 33, and a sawtooth shape is formed between adjacent ramp drive blocks 331 on the outer side of the drive cylinder 33. Through the above-mentioned multi-layer cylinder nesting structure, when crushing and extruding, the oscillating crushing outer cylinder 32 can switch between the separation and combination of the rotational motion when rotating to the corresponding quadrant height position, and when the outer cylinder produces an extrusion effect relative to the lower slag, the jamming phenomenon is avoided, and the crushing force can be controlled to a certain extent by adjusting the vibration speed, realizing a flexible adaptive and continuously controllable process.

[0021] The slag return incineration device 5 includes a slag return curved pipe 51 and a slag delivery straight pipe 52. The left end of the slag delivery straight pipe 52 is connected to the right side of the lower part of the oscillation crushing mechanism 3. The right end of the slag delivery straight pipe 52 passes through the auxiliary incineration chamber 13 to form a through opening. The lower end of the slag return curved pipe 51 penetrates the auxiliary incineration chamber 13 and is connected to the slag delivery straight pipe 52. The slag separation and crushing device 6 pushes the slag through the through opening. Specifically, the slag separation and crushing device 6 includes a hydraulic push cylinder 61 and a pushing cylinder 62. The hydraulic push cylinder 61 is fixedly installed on the outside of the main incineration furnace body 1. The outer end of the hydraulic push cylinder 61 is provided with a connecting plug plate 611. The pushing cylinder 62 is slidably inserted into the slag delivery straight pipe 52 against the wall. The front end of the pushing cylinder 62 is provided with a sealing plate for pushing the slag. The middle part of the pushing cylinder 62 is welded to the connecting plug plate 611 to form a cavity, and the upper and lower cylinder walls of the cavity are provided with crushing holes. The lower cylinder wall of the slag delivery straight pipe 52 located in the auxiliary incineration chamber 13 is provided with a slag leakage hole 521. The slag leakage hole 521 and the crushing hole can form a shearing effect through the relative movement of the pushing cylinder 62 and the slag delivery straight pipe 52. The aperture of the slag leakage hole 521 is larger than the aperture of the crushing hole. The transition incineration chamber 12 and the auxiliary incineration chamber 13 are both provided with an incineration grid plate 7, and the incineration grid plate 7 is provided with an incineration sieve hole 71. The bottom of the oscillating crushing mechanism 3 is provided with an arc screen 311, and the arc screen 311 includes a bottom sieve hole 311a, and the aperture of the bottom sieve hole 311a is larger than the incineration sieve hole 71.

[0022] In actual operation, the slag can be fed into the feed port 212 at a certain speed through an external device, and the feed port 212 is fed with secondary speed regulation. The eccentric drive shaft 34 rotates counterclockwise, driving the extrusion drive column 332 at the corresponding position to push the inner wall of the extrusion oscillation crushing outer cylinder 32, so that the outer wall of the oscillation crushing outer cylinder 32 squeezes the slag at the bottom, and the smaller slag is squeezed into the transition incineration chamber 12 through the bottom sieve hole 311a for preliminary incineration. After a period of incineration, the particles become smaller and fall into the main incineration furnace body 1 for incineration, while the larger particles in the outer shell 31 are squeezed to the right side due to the rotation and extrusion, and such larger particles enter along the slag return curved pipe 51. The slag is fed into the straight pipe 52, and larger particles are directly pushed back into the outer shell 31 for further crushing without passing through the slag leakage hole 521, and smaller particles can directly fall into the auxiliary incineration chamber 13, and some of the particles enter the upper crushing hole of the pushing cylinder 62 under the reciprocating action of the hydraulic push cylinder 61, and then fall into the lower crushing hole of the pushing cylinder 62, and the lower crushing hole is continuously dislocated and sheared with the slag leakage hole 521 to further crush into smaller particles, and finally fall into the auxiliary incineration chamber 13 or the main incineration furnace body 1 for incineration. The heat generated by the incineration in the transition incineration chamber 12 and the auxiliary incineration chamber 13 can be taken away through the heating water tank 4 therebetween, so as to achieve the effect of environmentally friendly recovery of slag and secondary utilization of waste heat.

[0023] In addition, the present invention can adopt different oscillation crushing frequencies, that is, rotation speeds, according to the size and hardness of the specific slag, and adjust the reciprocating frequency of the hydraulic push cylinder 61 at the same time to achieve organic coordination between the two, further realize intelligent slag recovery and processing, and can adapt to the recovery and processing characteristics of different types of slag.

[0024] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An environmentally friendly intelligent coal chemical slag recovery and treatment system, characterized by: It includes a main incineration furnace body, a feeding device, an oscillating crushing mechanism, a heating water tank, a slag return incineration device and a slag separation crushing device. A transition incineration chamber and an auxiliary incineration chamber are respectively arranged on the left and right sides of the upper part of the main incineration furnace body. A heating water tank for recovering the heat of slag incineration is arranged between the transition incineration chamber and the auxiliary incineration chamber. The oscillating crushing mechanism is fixedly installed on the upper part of the transition incineration chamber. A feeding device is arranged on the upper left side of the oscillating crushing mechanism. The feeding device includes a feeding box. An adjustable conveying device is arranged inside the feeding box. The adjustable conveying device includes a conveyor belt. A feeding port is arranged on the upper left side of the feeding box. The lower right side of the feeding box is connected to the oscillating crushing mechanism. The right side of the oscillating crushing mechanism is connected with the slag return incineration device. The slag return incineration device is installed on the upper part of the auxiliary incineration chamber. The slag return incineration device is provided with a slag separation crushing device for secondary crushing and incineration.

2. The environmentally friendly intelligent coal chemical slag recovery and treatment system according to claim 1 is characterized by: A heating base is installed at the bottom of the main incinerator body, a heat insulation layer is arranged on the outside of the main incinerator body, the cross section of the heating base is U-shaped, and the bottom of the main incinerator body is movably installed above the heating base.

3. The environmentally friendly intelligent coal chemical slag recovery and treatment system according to claim 1 is characterized by: The oscillating crushing mechanism includes an outer shell, an oscillating crushing outer cylinder, a driving cylinder and an eccentric driving shaft. The outer shell is in the shape of a horizontal flat cylinder. The oscillating crushing outer cylinder is a single-layer plate cylinder used for extruding slag. The driving cylinder is installed inside the oscillating crushing outer cylinder. A slope driving block is provided on the outside of the driving cylinder. Extrusion driving columns corresponding to each slope driving block are provided between the slope driving block and the oscillating crushing outer cylinder. The eccentric driving shaft is coaxial with the oscillating crushing outer cylinder, and the shaft end of the eccentric driving shaft is connected to an external motor speed regulation driving mechanism.

4. The environmentally friendly intelligent coal chemical slag recovery and treatment system according to claim 3 is characterized by: The ramp driving blocks are sequentially arranged along the outer circumference of the driving cylinder in the circumferential direction, and the ramp driving blocks extend axially along the axial direction of the driving cylinder, and a sawtooth shape is formed between adjacent ramp driving blocks on the outer side of the driving cylinder.

5. The environmentally friendly intelligent coal chemical slag recovery and treatment system according to claim 1 is characterized by: The slag return incineration device includes a slag return curved pipe and a slag delivery straight pipe. The left end of the slag delivery straight pipe is connected to the right side of the lower part of the oscillation crushing mechanism, and the right end of the slag delivery straight pipe passes through the auxiliary incineration chamber to form a through opening. The lower end of the slag return curved pipe penetrates into the auxiliary incineration chamber and is connected to the slag delivery straight pipe. The slag separation and crushing device pushes the slag through the through opening.

6. The environmentally friendly intelligent coal chemical slag recovery and treatment system according to claim 5 is characterized by: The slag separation and crushing device includes a hydraulic push cylinder and a pushing cylinder. The hydraulic push cylinder is fixedly installed on the outside of the main incinerator body. A connecting plug plate is provided at the outer end of the hydraulic push cylinder. The pushing cylinder is slidably inserted into the slag delivery straight pipe against the wall. A sealing plate for pushing the slag is provided at the front end of the pushing cylinder.

7. The environmentally friendly intelligent coal chemical slag recovery and treatment system according to claim 6 is characterized by: The middle part of the pushing cylinder is welded to the connecting plug plate to form a cavity, and crushing holes are provided on the upper and lower cylinder walls of the cavity. The lower cylinder wall of the slag conveying straight pipe located in the auxiliary incineration chamber is provided with slag leakage holes, and a shearing effect can be formed between the slag leakage hole and the crushing hole through the relative movement of the pushing cylinder and the slag conveying straight pipe, and the aperture of the slag leakage hole is larger than the aperture of the crushing hole.

8. The environmentally friendly intelligent coal chemical slag recovery and treatment system according to claim 1 is characterized by: The transition incineration chamber and the auxiliary incineration chamber are both provided with an incineration grid, and the incineration grid is provided with an incineration sieve hole. The bottom of the oscillating crushing mechanism is provided with an arc-shaped screen, and the arc-shaped screen includes a bottom sieve hole, and the aperture of the bottom sieve hole is larger than the incineration sieve hole.

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