CN212237526U - A high temperature industrial slag grinding device - Google Patents

Abstract

The utility model discloses a high temperature industry sediment grinder, but including the equal open-ended urceolus in upper and lower both ends to but axial motion's rabbling mechanism simultaneously of rotation in a circumferential direction, but the rabbling mechanism stretches into in the urceolus from the lower extreme opening of urceolus, have the clearance that supplies the industry sediment after grinding to drop between urceolus and the rabbling mechanism. The high-temperature industrial slag is fully ground by the grinding media while the temperature is reduced due to heat exchange with the grinding media in the grinding equipment, so that finished industrial slag with required particle size for subsequent separation and utilization is obtained, and the grinding media also obtain high-energy heat energy, thereby providing conditions for efficient utilization of subsequent heat energy.

Description

A high temperature industrial slag grinding device

technical field

The utility model relates to the technical field of industrial waste slag treatment, in particular to a high-temperature industrial slag grinding device.

Background technique

In the industrial field, various industrial waste residues are produced in the industrial production process of mining and smelting. Most of the industrial slag has a high temperature when it is released, such as boiler slag (700-1000℃), metallurgical slag (1200-1600℃), chemical slag (600-1200℃). With the rapid development of society and economy, industrial waste is increasing day by day, which not only causes huge pressure on the urban environment, but also limits the development of the city. At present, the three-step method of "cooling + sorting + comprehensive utilization" is usually used to process and utilize industrial high-temperature slag.

The high-temperature industrial slag produced by the factory often adopts natural or forced cooling, which will cause a lot of heat energy waste. According to relevant research reports, the annual energy saving value of each unit of boiler slag is 30-5 million yuan, and that of metallurgical slag is 5-80 million yuan. Yuan, or even hundreds of millions of dollars. The sorting of industrial slag is usually carried out first by crushing and screening processes, mainly to recover metal elements with high added value from the waste residue, and to provide conditions for subsequent comprehensive utilization. 20mm or less, the more optimal particle size is 10mm or less, and the optimal particle size is 5mm or less. The comprehensive utilization of industrial slag often turns waste into treasure according to the type and composition of industrial slag. For example, it is used for building materials, making cement and products, glass-ceramic, calcium magnesium phosphate fertilizer, etc.

For the cooled industrial slag, grinding equipment must be used to grind it before sorting and utilization. The grinding equipment in the prior art usually uses a mill, which is divided into horizontal mills according to the relative relationship between the central axis of the cylinder and the horizontal plane. and vertical mills. Its working principles are as follows:

The horizontal mill is generally a welded cylinder, and the material is loaded into the cylinder by the hollow shaft at the feed end of the mill. When the mill cylinder rotates, the grinding medium and the material are due to inertia, centrifugal force, and friction. It is attached to the lining plate of the cylinder and is taken away by the cylinder. When it is brought to a certain height, it will be thrown down due to its own gravity, and the falling grinding medium will crush the material in the cylinder like a projectile.

The vertical mill is generally a welded cylinder with a protective lining on the inner wall, a stirring shaft in the center of the cylinder, and several rotating blades (or push rods) arranged at intervals in the radial direction of the stirring shaft. The blade (or push rod) drives the grinding medium to perform forced mechanical shearing and grinding, so that the material and the grinding medium are fully contacted and ground.

So the key to these two methods of grinding is that the grinding medium needs to move quickly.

The disadvantages of these two types of mills are as follows:

Existing horizontal mills: 1) Low work efficiency. According to relevant data, the power consumption of the input power used for crushing materials (doing useful work) only accounts for a small part of the power consumption of the overall equipment, about 5% to 7%. , and most of the electric energy is consumed in other aspects, mainly converted into heat energy and sound energy and disappeared, which is a great waste. 2) The body is bulky, and the total weight of the large one can reach more than several hundred tons, so the one-time investment must be very large and the production cost is high. 3) When the grinding medium impacts and grinds the material, it is also subjected to grinding and peeling, and the lining plate and other parts in the cylinder are also ground and peeled, so in the whole production process, the consumption of the lining plate is a lot, according to the relevant According to data analysis, about 1kg of liner is consumed for each ton of product produced. 4) The horizontal installation is not conducive to the flow of materials, and the ground materials cannot be ground in time, resulting in over-grinding and waste.

Vertical mill: 1) The stirring shaft and rotary vane (or push rod) are embedded in the grinding medium, and the related parts consume a lot. 2) The stirring shaft and rotary vane (or push rod) are buried in the grinding medium, and the resistance to be overcome during the rotating motion increases, which will adversely affect the driving device.

Therefore, from the perspective of energy saving and environmental protection, it is necessary to seek a process and device that can not only utilize the high thermal energy of high-temperature industrial slag, but also realize the grinding of industrial slag with a process and device with low cost, small footprint and short flow, and finally realize the sorting. , the use is particularly important.

Utility model content

The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art, and to provide a high-temperature industrial slag grinding device which not only realizes the grinding of industrial slag, but also utilizes the high thermal energy of the high-temperature industrial slag.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions:

A high-temperature industrial slag grinding device, comprising an outer cylinder with openings at both upper and lower ends, and a stirring mechanism that can rotate circumferentially and move axially at the same time, the stirring mechanism extends into the outer cylinder from the opening at the lower end of the outer cylinder, and the outer cylinder There is a gap for the ground industrial slag to drop between the drum and the stirring mechanism.

High-temperature industrial slag refers to industrial slag with a temperature of ≥600 °C.

After the high-temperature industrial slag and the grinding medium are introduced into the outer cylinder, the high-temperature industrial slag will burrow into the gap formed by the grinding medium pile in the outer cylinder under the action of gravity, so that the grinding medium and the high-temperature industrial slag can fully conduct heat exchange, and at the same time accompanied by grinding The movement of the stirring mechanism compartment of the equipment (the stirring mechanism compartment can be set to a single clockwise or a single counterclockwise movement, it can also be set to clockwise and counterclockwise reciprocating motion, and it can also perform vertical up and down movement while rotating), so, The temperature of the high-temperature industrial slag is reduced due to the heat exchange with the grinding medium in the grinding equipment, and at the same time, it is fully ground by the grinding medium, so as to obtain the finished industrial slag that meets the required particle size for subsequent sorting and utilization, and the grinding medium also obtains high energy Thermal energy provides conditions for the efficient utilization of subsequent thermal energy.

Specifically, the gap is the gap between the inner wall of the outer cylinder of the grinding device and the outer edge of the top of the stirring mechanism of the grinding device, and the gap is the discharge hole of the industrial slag process.

As a further improvement of the above technical solution:

The top surface of the stirring mechanism is tilted, and the purpose is to make the stirring mechanism bin of the grinding equipment move up and down during the movement process (or rotate or move up and down while rotating) by changing the physical position of the top plane of the stirring mechanism bin to force the stack to be pressed on its top plane. The grinding medium passively undergoes a sliding or rolling compound motion, thereby forcing the industrial slag filled in the grinding medium stack to be fully ground, and making the high-temperature industrial slag and the grinding medium fully heat exchange.

The working principle of the grinding equipment is as follows: the top surface of the grinding equipment stirring mechanism bin is used to form an angle α with the vertical axis, so that in the axial direction of the grinding equipment, there are different quantities of grinding media at different heights. When the grinding equipment stirring mechanism bin During the rotating motion, the grinding medium moves passively with the change of the position of the top surface of the stirring mechanism bin of the grinding equipment. The specific manifestation is that the grinding medium at the high end of the top surface of the stirring mechanism bin of the grinding equipment basically moves in the circumferential direction of the plane where the top surface of the stirring mechanism bin is located. Low-end movement, the grinding medium at the low end of the mixing mechanism chamber is squeezed and passively moves to the high-end along the circumferential direction of the plane where the top surface of the mixing mechanism chamber is located. The mixing mechanism bin of the equipment moves up and down in the axial direction while rotating, and the grinding medium moves faster.

The moving speed of the grinding medium in the grinding device is far lower than the grinding medium in the two types of mills described in the background art, so that the defect that the grinding medium is easily worn out due to too violent movement under high temperature conditions can be solved; Because the stirring mechanism bin of the grinding equipment for rotating motion does not need to be buried in the grinding medium, it only needs to overcome the friction between the grinding medium and the contact part to move, which greatly reduces the work of the driving device, the equipment is simpler, the maintenance is more convenient, and it is more economical It also avoids the disadvantageous situation that the existing vertical mill stirring shaft and rotary vane (or push rod) are buried in the grinding medium, resulting in a great consumption of related parts.

In addition, the crushing of high-temperature industrial slag in this equipment does not rely solely on the grinding action of the grinding medium (so high-speed movement of the grinding medium is not required). Even if the grinding medium can grind the industrial slag during the movement, the The crushing mainly uses the effect of self-cracking of high-temperature industrial slag under the condition of rapid cooling (the temperature difference between the slag itself and the grinding medium is large) (so the grinding medium with high thermal conductivity is used). The high-temperature industrial slag is introduced into the grinding equipment through a general container (industrial slag tank or industrial slag basin) or industrial slag ditch. Control the diameter of the grinding medium and the quantity of the grinding medium, so as to obtain the industrial slag product that basically meets the particle size for subsequent sorting and utilization. The main function of the grinding medium is to introduce the industrial slag layer covering the surface of the grinding medium into the grinding medium in time during the slow motion. In the gap of the medium pile, the thermal conductivity of the grinding medium is prevented from being affected by being surrounded by the slag layer. Of course, because the grinding medium rotates or moves up and down with the stirring mechanism bin of the grinding equipment, it also further grinds the industrial slag.

The angle α between the top surface of the stirring mechanism and the axial centerline of the stirring mechanism is 30°-75°.

The angle α between the top surface of the stirring mechanism and the axial centerline of the stirring mechanism is 45-60°.

A small angle α is conducive to accelerating the grinding of industrial slag, which is biased towards the discharge of finished industrial slag. The disadvantage is that the wear of the top surface of the mixing mechanism silo and the medium is aggravated. Wear, the disadvantage is that the discharge speed of the finished industrial slag is slowed down.

In order to fully exchange heat with industrial slag, the specific heat capacity of the grinding medium is greater than 0.4J/(kg·℃).

The wear resistance coefficient is a function of the ratio K of the hardness of the grinding medium and the hardness of the industrial slag. For the selection of the grinding medium, the control ratio K=0.85-1.2. When the hardness of the two is close, that is, the K value is above 0.90, the unit consumption ratio of the grinding medium is K value. Below 0.5, it is reduced by 30%-50%.

The grinding medium is made of metal materials with good thermal conductivity and wear resistance, such as wear-resistant ductile iron, gray iron, alloy materials, etc., which can not only improve the heat exchange efficiency between the medium and the high-temperature industrial slag, but also prolong the service life of the medium; grinding The shape of the medium can be round bar, sphere, ellipse, preferably sphere; the ratio of the diameter of the grinding medium to the diameter of the effective cylinder of the grinding equipment should be 1/25-1/100, and the ratio of the diameter of the grinding medium to the particle size of the finished industrial slag should be 15-20, which can ensure both the grinding speed of industrial slag and the discharge speed of finished industrial slag. For example: steel balls, copper balls, iron balls, and other alloy metal products.

As a specific structural form of the stirring mechanism, the stirring mechanism includes a rotating shaft and a sieve plate fixed on the top of the rotating shaft, an annular baffle is fixed on the outer circumference of the rotating shaft, and the outer edge of the annular baffle is opposite to the annular baffle. The inner edge slopes downward.

The size of the screen holes on the screen plate is also matched with the discharge holes of the industrial slag process.

The lower end of the outer cylinder is fixed with a slag receiving groove, and the lower end of the stirring mechanism is connected to the driving mechanism after passing through the slag receiving groove.

In order to ensure the up and down movement of the stirring mechanism, the bottom center of the slag receiving tank is recessed upward to form a groove, the lower end of the stirring mechanism passes through the bottom end surface of the groove, and the bottom end surface of the slag receiving tank is inclined.

The longitudinal section of the groove is trapezoidal, so that the slag receiving groove forms a suitable inclination angle, so that the ground industrial slag can be discharged smoothly. In addition, an auxiliary vibrator can be provided on the outer wall of the slag receiving tank, so that the industrial slag falling into the slag receiving tank can smoothly slide to the subsequent equipment. The industrial slag that does not meet the particle size for subsequent sorting and utilization can continue to be returned to the grinding equipment for re-use of thermal energy and grinding.

The slag receiving tank is communicated with a vibrating screening device, and the vibrating screening device is communicated with a storage bin through a waste slag conveyor.

Cooling equipment is arranged between the vibrating screening equipment and the waste residue conveyor.

The industrial slag whose particle size meets the requirements for subsequent sorting and utilization can continue to be transported to the cooling pool or other cooling medium environment, and this process step can also be omitted. It is returned to the grinding equipment for re-grinding, and the further cooled industrial slag is transported to the industrial slag storage bin through the waste slag conveying equipment, and is reserved for subsequent transfer or utilization.

The upper part of the outer cylinder is provided with a chute for the high-temperature industrial slag to enter the outer cylinder.

Compared with the prior art, the advantages of the present utility model are:

The high-temperature industrial slag grinding device of the utility model fully grinds the high-temperature industrial slag, and at the same time transmits high-energy thermal energy to the grinding medium, thereby providing conditions for efficient utilization of subsequent thermal energy. And the cost of subsequent process equipment required for sorting and comprehensive utilization of industrial slag is saved.

Description of drawings

FIG. 1 is a schematic structural diagram of a high-temperature industrial slag grinding device according to Embodiment 1 of the present invention.

FIG. 2 is a schematic diagram of the application of the high-temperature industrial slag grinding device according to Embodiment 1 of the present invention.

3 is a schematic structural diagram of a high-temperature industrial slag grinding device according to Embodiment 2 of the present invention.

Legend description: 1. Chute; 2. Grinding equipment; 21. Outer cylinder; 22. Stirring mechanism; 221, Rotating shaft; 222, Sieve plate; Screening equipment; 5. Cooling equipment; 6. Waste residue conveyor; 7. Storage bin; 8. Medium conveyor; 9. Grinding medium storage cylinder; 10. Dust removal equipment; 11. Waste heat power generation equipment;

Detailed ways

The present utility model will be further described below with reference to specific preferred embodiments, but the protection scope of the present utility model is not limited thereby.

Example 1:

Referring to FIG. 1 , the high-temperature industrial slag grinding device of this embodiment includes an outer cylinder 21 with both upper and lower ends open, a stirring mechanism 22 that can rotate in the circumferential direction and can move axially at the same time, and a slag receiving groove 3 fixed at the lower end of the outer cylinder 21. . The stirring mechanism 22 extends into the outer cylinder 21 from the lower end opening of the outer cylinder 21, and there is a gap for the ground industrial slag to fall between the outer cylinder 21 and the stirring mechanism 22; the inner wall of the outer cylinder 21 of the grinding equipment and the stirring mechanism of the grinding equipment The gap between the outer circle (or outer arc surface) of the track at the top of 22 (the part in direct contact with the grinding medium 23 and industrial slag) is the value A, and this gap is the discharge pore of the industrial slag process. In order to take into account the final grinding particle size of the industrial slag and the The discharge speed, the A value is generally 1/2-1/3 of the size of the grinding medium, which is 2-4 times the particle size of the finished industrial slag, which can prolong the service life of the grinding medium (the size needs to be smaller than the gap A value will be accompanied by the finished product The industrial slag is discharged together), and it can also ensure that the industrial slag can obtain the particle size requirements that the subsequent sorting and utilization links need to ensure in a short time. The front end surface of the stirring mechanism 22 is inclined.

The outer silo and the stirring mechanism silo together provide a semi-closed space. While the grinding medium and the high-temperature industrial slag are fully heat exchanged in this space, the grinding medium also performs the rapid grinding function of the industrial slag, and the medium and low temperature industrial slag after grinding is completed. The slag is quickly discharged through the slag discharge gap of the grinding equipment, and the grinding medium has abundant thermal energy after heat exchange with the high-temperature industrial slag, and is subsequently discharged through the grinding device, and is transported to the high-level grinding medium storage cylinder through the special conveying equipment for grinding. The high calorific value of this part of the medium is used effectively.

The outer silo can be set as a cylinder or a cone. The outer silo is fixed and its main function is to provide a peripheral wall for the grinding media and industrial slag stored in the grinding equipment; the outer silo wall can be provided with a water-cooling structure, It can not only avoid the accelerated wear or even damage of the inner wall due to contact with high-temperature industrial slag, but also effectively utilize this part of the heat energy, mainly to heat the cooling water in the water-cooling structure of the external silo to provide domestic hot water for the production workshop. Wait. Considering that some industrial slag may adhere to the inner wall of the outer silo, the outer wall of the outer silo can also be provided with a vibrator, and the outer silo can also have the function of vertical movement up and down.

The stirring mechanism bin is a structure that rotates around the center of the vertical shaft (it can rotate clockwise or counterclockwise in a single direction, or alternately rotate clockwise and counterclockwise). The angle of α is generally 30°-75°. The advantage of a small inclination angle is to accelerate the grinding of industrial slag, which is biased towards the discharge of the finished industrial slag. The advantage is that the wear of the top surface of the mixing mechanism silo and the medium is slowed down, and the disadvantage is that the discharge speed of the finished industrial slag is slowed down, preferably 45-60°.

The mixing mechanism bin has the function of moving up and down in the vertical direction, which not only provides guarantee for the grinding media to be discharged from the upper or lower part of the grinding equipment, but also facilitates the maintenance of the production process of the mixing mechanism chamber.

The wall of the mixing mechanism can be equipped with a water-cooled structure, which can not only prevent high-temperature industrial slag and high-temperature grinding media (to obtain a higher temperature after heat exchange with the high-temperature industrial slag) from transferring or radiating high temperature to the relevant structures, reducing the strength of the relevant structures, but also avoiding The top surface structure of the high temperature industrial slag paste mixing mechanism affects the slag discharge effect of the bottom industrial slag.

The grinding medium 23 is made of metal materials with good thermal conductivity and wear resistance, such as wear-resistant ductile iron, gray iron, alloy materials, etc., which can not only improve the heat exchange efficiency between the medium and the high-temperature industrial slag, but also prolong the service life of the medium; The shape of the grinding medium can be round rod, sphere, ellipse, preferably a sphere; the ratio of the diameter of the grinding medium to the diameter of the effective cylinder of the grinding equipment should be 1/25-1/100, and the ratio of the diameter of the grinding medium to the particle size of the finished industrial slag should be It is 15-20, which can ensure both the grinding speed of industrial slag and the discharge speed of finished industrial slag.

The lower end of the stirring mechanism 22 passes through the slag receiving tank 3 and is connected to the driving mechanism. The slag receiving tank 3 and the stirring mechanism 22 can be connected through a rotary bearing, and a sealing plate is set on the top surface of the rotary bearing to prevent industrial slag from falling into the bearing. middle.

The bottom center of the slag receiving tank 3 is recessed upward to form a groove 31 with a trapezoidal longitudinal section. The lower end of the stirring mechanism 22 passes through the bottom end face of the groove 31. outflow. Above the outer cylinder 21 is provided a chute 1 for the high temperature industrial slag to enter the outer cylinder 21 .

The slag receiving tank 3 is communicated with a vibrating screening device 4 , and the vibrating screening device 4 is connected to a cooling device 5 , and the cooling device 5 is communicated with a storage bin 7 through a waste residue conveyor 6 .

Referring to FIG. 2 , the high-temperature industrial slag grinding device of this embodiment is integrated with the waste heat utilization system, the outer cylinder 21 is located directly below the grinding medium storage cylinder 9 , and a medium conveyor 8 is provided between the outer cylinder 21 and the grinding medium storage cylinder 9 , the input end of the media conveyor 8 is located below the outer cylinder 21 , and the output end of the media conveyor 8 is located above the grinding media storage cylinder 9 . The grinding medium storage cylinder 9, the dust removal device 10, the waste heat power generation device 11 and the induced draft fan 12 are connected in sequence to form a waste heat power generation circuit.

For a temperature of 900°C, preferably 1000°C or above, the physical state of the high-temperature industrial slag is completely liquid. Under the action of gravity, it will drill into the gap formed by the grinding medium pile in the grinding equipment, so that the grinding medium and the high-temperature industrial slag can fully exchange heat, and accompanied by the movement of the stirring mechanism bin of the grinding equipment (can be set to a single clockwise Or a single counterclockwise motion can also be set to clockwise and counterclockwise reciprocating motion, or it can also perform vertical up and down motion while rotating). At the same time, it is ground by the grinding medium, so as to obtain the finished product that meets the subsequent sorting and utilization of the industrial slag with the required particle size, and the grinding medium also obtains high-energy thermal energy. If it is too high, the abrasion resistance of the grinding medium will decrease and the loss will increase.) According to the weight of the industrial slag to be treated, the loading amount of the grinding medium is reasonably controlled, and the temperature of the grinding medium after heat exchange is ensured to be 500-600 °C, and then meet the particle size of the subsequent sorting. The required industrial slag falls freely into the intermediate slag trough through the pores of the slagging process in the grinding equipment. The slag is transported to the subsequent vibrating screening equipment. After the sorting by the vibrating screening equipment, the industrial slag that does not meet the particle size requirements can continue to be led into the grinding equipment through suitable conveying equipment for re-grinding, while the industrial slag that meets the particle size requirements Industrial slag, according to its characteristics and the direction of subsequent use, either transport this part of industrial slag (average 500 ℃) to a cooling pool or other cooling medium environment for further cooling, and the cooled industrial slag is then passed through suitable conveying equipment (such as chain plates) The industrial slag (average 500℃) after being screened by vibrating screen is directly passed through suitable conveying equipment (such as chain plate) without cooling machine, bucket elevator or screw conveyor, etc.) are transported to the silo or storage yard for storage; the grinding medium after full heat exchange with the high-temperature industrial slag in the grinding equipment is discharged through the upper or lower part of the grinding equipment to the special transportation of grinding medium The equipment is then stored in the high-level grinding medium cylinder, and normal temperature air is introduced into the lower part of the high-level grinding medium cylinder, and the air passes through the physical stacking gap of the grinding medium from bottom to top to fully cool the grinding medium (temperature around 500℃-600℃), The high-temperature air is connected to the dust removal facility from the upper part of the high-level grinding media cylinder, and the high-temperature air purified by the dust removal facility is sent to the turbine and generator (not shown in the system diagram in Figure 1) for power generation. Then, the cooled air is sent to the lower part of the high-level medium cylinder again through the induced draft fan for the next gas recycling; the cooled grinding medium is put into the grinding equipment through a suitable discharge device, and the next process is carried out for recycling. In order to ensure the continuous utilization of heat energy, there should be two or more high-level grinding media cylinders, so as to ensure that one or more high-level grinding media cylinders use waste heat while another one or more high-level grinding media cylinders are used. There is a normal temperature grinding medium to ensure that the subsequent process flow is cyclic.

For a temperature of 900°C or below, the physical state is a high-temperature industrial slag that is both liquid and solid, or even a completely solid high-temperature industrial slag, which can drill into the gap formed by the grinding medium in the grinding equipment through its own gravity. The method is the same as the above-mentioned higher temperature industrial slag treatment method. If it cannot flow into the cavity formed by the grinding medium pile through its own gravity, the method of draining the industrial slag while draining the normal temperature grinding medium from the high-level grinding medium cylinder is used. This is still achieved. The high-temperature industrial slag is surrounded and ground by the grinding medium, so that sufficient heat exchange is carried out between the two to achieve full grinding of the industrial slag. With the movement of the stirring mechanism compartment of the grinding equipment (can be set to a single clockwise or single counterclockwise movement, or can be set to clockwise and counterclockwise reciprocating motion, or can also perform vertical up and down movement while rotating), in line with the subsequent classification The industrial slag of the selected particle size needs to fall freely into the intermediate slag trough through the slag discharge process hole in the grinding equipment. The industrial slag in the middle is transported to the subsequent vibrating screening equipment. After being sorted by the vibrating screening equipment, the industrial slag that does not meet the particle size requirements can continue to be led into the grinding equipment through suitable conveying equipment for regrinding. Industrial slag, according to its characteristics and the direction of subsequent use, either transport the industrial slag (average 350°C) to a cooling pool or other cooling medium environment for further cooling, and the cooled industrial slag is then passed through suitable conveying equipment (such as chain plate machine, bucket elevator or screw conveyor, etc.) to the silo or yard for storage; or the industrial slag (average 350 ℃) after being screened by vibrating screen is directly passed through suitable conveying equipment (such as chain plate machine, Bucket elevators or screw conveyors, etc.) are transported to silos or storage yards for storage; the grinding media stored in the grinding equipment after sufficient heat exchange with high-temperature industrial slag are discharged to the special conveying equipment for grinding media through the upper or lower parts of the grinding equipment. Then store it in the high-level grinding medium cylinder, and pass normal temperature air into the lower part of the high-level grinding medium cylinder. The upper part of the high-level grinding medium cylinder is connected to the dust removal facility, and the high-temperature air purified by the dust removal facility is sent to the turbine and generator (not shown in the system diagram in Figure 1) for power generation. The induced draft fan sends the cooled air into the lower part of the high-level medium cylinder again for the next gas recycling; the cooled grinding medium is put into the grinding equipment through a suitable discharge device, and the next process is carried out for recycling. In order to ensure the continuous utilization of heat energy, there should be two or more high-level grinding media cylinders, so as to ensure that one or more high-level grinding media cylinders use waste heat while another one or more high-level grinding media cylinders are used. There is a normal temperature grinding medium to ensure that the subsequent process flow is cyclic.

Regardless of the physical state of the high-temperature industrial slag, once the heat exchange with the grinding medium 23 is completed in the grinding device 2 , the slag is discharged to the slag receiving tank 3 from the pre-set gap of the grinding device 2 in the discharge process with the value A. At the same time, a suitable inclination angle is arranged for the slag receiving tank 3 or even a vibrator is added, so that the industrial slag discharged from the pores of the discharge process slides down to the vibrating screening equipment 4, and the particle size meets the requirements of subsequent sorting and utilization. The industrial slag is continuously transported to the cooling pool or other cooling equipment 5. This equipment and cooling process steps can also be omitted. The industrial slag whose particle size does not meet the requirements of subsequent sorting and utilization can be reused in the intermediate conveying equipment (not shown in Figure 1). Return to the grinding equipment 2 for regrinding, and the further cooled industrial slag is transported to the industrial slag storage bin 7 by the waste slag conveyor 6, and is reserved for subsequent transfer or utilization, and the logistics path of the industrial slag ends here.

For the grinding medium 23 that obtains high-energy calorific value after heat exchange with the high-temperature industrial slag, after the industrial slag falls into the slag receiving tank 3, the grinding medium 23 is removed from the grinding equipment by controlling the up and down movement of the stirring mechanism 22 of the grinding equipment 2. The upper or lower part is discharged into the media conveyor 8, and finally stored in the grinding medium storage cylinder 9, and normal temperature air is introduced into the lower part of the high-level grinding media storage cylinder 9, and the air passes through the grinding media 23 from bottom to top. The grinding medium 23 is fully cooled, and the high-temperature air is connected to the dust removal equipment 10 from the upper part of the high-level grinding medium storage cylinder 9, and the high-temperature air purified by the dust removal equipment 10 is sent to the power generation system 11 composed of a turbine and a generator, etc. for power generation. The internal circulating high-temperature air is cooled, and then the cooled air is circulated into the lower part of the high-level grinding medium storage cylinder 9 through the induced draft fan 12, and the next gas heat exchange utilization cycle is carried out; In equipment 2, the next technological process flow is carried out, which is recycled. In order to ensure continuous thermal energy utilization, there should be two or more high-level grinding medium storage cylinders 9, so as to ensure that there are one or more high-temperature grinding medium storage cylinders 9 while utilizing waste heat, and another one or more. The high-level grinding medium storage cylinder 9 has normal temperature grinding medium to ensure that the subsequent process flow is cyclic.

Example 2:

3, in order to further improve the discharge speed of industrial slag, the stirring mechanism 22 can also be made into a structure including a rotating shaft 221 and a sieve plate 222 fixed on the top of the rotating shaft 221, and an annular baffle is fixed on the outer circumference of the rotating shaft 221. 223 , the outer edge of the annular baffle 223 is inclined downward relative to the inner edge of the annular baffle 223 . The sieve hole size of the sieve plate is also the A value, which can improve the slag discharge efficiency under the condition that the inner diameter of the outer cylinder remains unchanged.

The above is only the preferred embodiment of the application, and does not limit the application in any form. Although the application is disclosed as above with the preferred embodiment, it is not intended to limit the application. Without departing from the scope of the technical solutions of the present application, any changes or modifications made by using the technical contents disclosed above are equivalent to equivalent implementation cases and fall within the scope of the technical solutions.

Claims (10)

1. The utility model provides a high temperature industry sediment grinder, its characterized in that includes the equal open-ended urceolus (21) in upper and lower both ends to but and the circumferential direction rotatory simultaneously axially movable's rabbling mechanism (22), but the rabbling mechanism (22) stretch into urceolus (21) from the lower extreme opening of urceolus (21), have the clearance that supplies the industry sediment after grinding to drop between urceolus (21) and rabbling mechanism (22).

2. A high temperature industrial slag grinding apparatus according to claim 1, wherein the top end face of the stirring mechanism (22) is disposed obliquely.

3. A high temperature industrial slag grinding apparatus according to claim 2, wherein the tip end face of the stirring mechanism (22) has an angle α of 30 ° to 75 ° with the axial centerline of the stirring mechanism.

4. A high temperature industrial slag grinding apparatus according to claim 2, wherein the tip end face of the stirring mechanism (22) has an angle α of 45-60 ° with the axial centerline of the stirring mechanism.

5. A high temperature industrial slag grinding device according to any one of claims 1-4, wherein the stirring mechanism (22) comprises a rotating shaft (221) and a screen plate (222) fixed on the top end of the rotating shaft (221), an annular baffle plate (223) is fixed on the outer circumference of the rotating shaft (221), and the outer edge of the annular baffle plate (223) is inclined downwards relative to the inner edge of the annular baffle plate (223).

6. A high-temperature industrial slag grinding device according to any one of claims 1-4, wherein the lower end of the outer cylinder (21) is fixed with a slag receiving groove (3), and the lower end of the stirring mechanism (22) passes through the slag receiving groove (3) and then is connected with a driving mechanism.

7. A high-temperature industrial slag grinding device according to claim 6, wherein the bottom center of the slag receiving groove (3) is recessed upwards to form a groove (31), and the lower end of the stirring mechanism (22) penetrates through the bottom end face of the groove (31).

8. A high temperature industrial slag grinding device according to claim 7, wherein the longitudinal section of the groove (31) is trapezoidal, and the bottom end surface of the slag receiving groove (3) is obliquely arranged.

9. A high temperature industrial slag grinding device according to claim 6, characterized in that the slag receiving trough (3) is in communication with a vibrating screen device (4), the vibrating screen device (4) being in communication with a storage silo (7) via a slag conveyor (6).

10. A high temperature industrial slag grinding apparatus according to any one of claims 1 to 4, characterized in that a chute (1) for high temperature industrial slag to enter the outer drum (21) is provided above the outer drum (21).

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