CN112317070B

CN112317070B - Movable vertical mill for treating construction waste

Info

Publication number: CN112317070B
Application number: CN202010149830.6A
Authority: CN
Inventors: 刘畅; 张伟丽; 叶卫东; 王宇
Original assignee: Hefei Zhongya Building Material Equipment Co ltd
Current assignee: Hefei Zhongya Building Material Equipment Co ltd
Priority date: 2020-03-06
Filing date: 2020-03-06
Publication date: 2024-07-19
Anticipated expiration: 2040-03-06
Also published as: CN112317070A

Abstract

The invention relates to the field of construction waste treatment mechanical equipment, in particular to a movable vertical mill for treating construction waste, which solves the treatment problem of the construction waste. Including taking fixed platform's transport vechicle and locating the vertical mill body and circular feed bin on the fixed platform, be equipped with the pipeline between vertical mill body and the circular feed bin, circular feed bin has the dust collection sack down, vertical mill body includes link mechanism, frame, grinding roller device, goes up casing, lower casing and mill, link mechanism and grinding roller device linkage assembly, fixed connection forms the grinding bin between going up casing and the lower casing, and grinding bin fixed mounting is in the frame, grinding roller device locates in the grinding bin, can realize the crushing, selecting powder, the transportation of brick tile, concrete in the construction waste, operation such as packing.

Description

Movable vertical mill for treating construction waste

Technical Field

The invention relates to the field of construction waste treatment mechanical equipment, in particular to a movable vertical mill for treating construction waste.

Background

Along with the acceleration of industrialization and urban processes in China, the building industry also rapidly develops, so that the generated building rubbish is increased, the foundation of the building rubbish in China is huge, the quantity of the building rubbish is 30% -40% of the total quantity of the urban rubbish, and the new generation of the building rubbish exceeds 3 hundred million tons each year, if the huge building rubbish is not treated in time, adverse effects are brought to society, environment and resources, however, most of the current treatment modes are simple recycling of available resources such as waste metal, waste plastic, waste bamboo and the like, and other building rubbish is transported to suburbs or rural areas without any treatment, and is piled up or buried in open air, so that serious pollution is caused to the environment, and a great amount of resource waste is caused.

At present, there are two modes of treating construction waste: firstly, using crushing equipment to carry out simple crushing and sorting operation, recovering useful metals and waste bamboo and wood, and transporting crushed garbage to suburbs or rural areas for open-air stacking or landfill; secondly, firstly, coarse crushing is carried out on the construction waste by using a jaw crusher, metals in the construction waste are recovered, and then, part of recycled aggregate is crushed and sieved by using crushing equipment such as impact crushing, cone crushing and the like, so that low-grade concrete is prepared. The existing treatment methods are basically concentrated treatment, the construction waste is concentrated to a grinding station for treatment, the transportation cost and secondary dust pollution are increased, the crushed micro powder particles are coarser, the prepared concrete has poorer performance, the process is more complex, the investment cost is increased, and in a word, the existing treatment methods for the construction waste have a series of problems of complex process, high investment cost, low recovery rate, low utilization rate, serious pollution and the like.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a movable vertical mill for treating construction waste.

In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the utility model provides a movable vertical mill of processing construction waste, includes the transport vechicle of taking fixed platform and locates vertical mill body and circular feed bin on the fixed platform, be equipped with the pipeline between vertical mill body and the circular feed bin, circular feed bin has dust collection sack down, vertical mill body includes link mechanism, frame, grinding roller device, last casing, lower casing and mill, link mechanism and grinding roller device linkage assembly, fixed connection forms the grinding storehouse between last casing and the lower casing, and grinds storehouse fixed mounting in the frame, grinding roller device locates in the grinding storehouse, lower casing lateral surface is equipped with feed chute and blown down tank respectively, be equipped with in the grinding storehouse return hopper that links to each other with feed chute and blown down tank, with the coaxial movable rotor of assembling of stator and rotor, go up the casing outside be equipped with the powder selecting motor and the powder selecting speed reducer of movable rotor linkage assembly, it is equipped with the spray pipe to go up casing bottom department, form the powder selecting passageway of communicating pipeline between return hopper, stator and the movable rotor.

Preferably, the link mechanism comprises an overhaul oil cylinder, a pressurization oil cylinder, a base and a transmission arm, wherein one ends of the overhaul oil cylinder and the pressurization oil cylinder are arranged on the base, and the other ends of the overhaul oil cylinder and the pressurization oil cylinder are respectively connected with the transmission arm to form a four-link motion mechanism with the degree of freedom of 1.

Preferably, the grinding roller devices are symmetrically arranged at two sides of the grinding disc, and an arc-shaped gap is formed between the grinding roller devices and the grinding disc.

Preferably, the connecting line of the notch between the feeding chute and the discharging chute is 180 degrees.

Preferably, the vertical mill body further comprises a main motor and a main speed reducer which are positioned on the fixed platform, wherein the grinding disc is connected with the main speed reducer through an elastic membrane coupling I, and the main speed reducer is connected with the main motor through an elastic membrane coupling II.

Preferably, the feed chute is provided with a wear-resistant steel plate, a roller, a rotating shaft and a permanent magnet block, wherein the wear-resistant steel plate is at least partially distributed on the wall of the feed chute, the rotating shaft is movably assembled on the wall of the feed chute, the roller and the rotating shaft are assembled and rotated in a linkage manner, the roller is axially projected to be plum blossom-shaped, and the permanent magnet block is arranged at the concave position of the outer contour of the roller.

Preferably, the grinding disc is provided with a thrust bearing in the axial direction, the grinding disc is provided with a double-row self-aligning roller bearing in the radial direction, a bearing seat is arranged below the thrust bearing, an oil pipe is arranged between the bearing seat and the grinding disc, the lower end of the bearing seat is provided with a bearing end cover, labyrinth seal is formed among the bearing seat, the bearing end cover and the grinding disc, and a sealing ring is arranged between the bearing end cover and the grinding disc.

Preferably, six supporting legs are arranged at the lower end of the transport vehicle.

Preferably, the center line of the grinding roller device forms an included angle of 12 degrees with the horizontal direction.

Preferably, the upper shell and the lower shell are connected through a flange.

The invention has the beneficial effects that: the movable vertical mill for treating the construction waste can realize the operations of crushing, selecting powder, conveying, packing and the like of bricks, tiles and concrete in the construction waste, the treatment capacity is about 10 tons per hour, and the specific surface area of a finished product is more than 450m < 2 >/kg. The prepared concrete and bricks and tiles have better performance, the discharging chute is arranged below the return hopper, and the coarse materials can be used as aggregate for preparing concrete. The vertical mill is attached to the transport vehicle, can be flexibly transferred to the site of construction waste for treatment, and avoids secondary pollution. The external thrust bearing reduces the cost of the speed reducer, improves the running reliability of the vertical mill, and solves the problem of impact force directly generated on the gear of the speed reducer due to running vibration of the vertical mill. The invention not only can overcome the defect of the existing construction waste treatment, but also can create good market economic value.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic diagram of the feed chute of the present invention;

Fig. 3 is a schematic view of a partial structure of a grinding disc of the present invention.

Detailed Description

As shown in fig. 1-3, a movable vertical mill for treating construction waste comprises a transport vehicle 1 with a fixed platform 28, a vertical mill body and a circular bin 17, wherein the vertical mill body and the circular bin 17 are arranged on the fixed platform 28, a pipeline 15 is arranged between the vertical mill body and the circular bin 17, a dust collection cloth bag 18 is arranged under the circular bin 17, the vertical mill body comprises a connecting rod mechanism, a frame 5, a grinding roller device 7, an upper shell 14, a lower shell 20 and a grinding disc 21, the connecting rod mechanism and the grinding roller device 7 are assembled in a linkage manner, a grinding bin is fixedly connected between the upper shell 14 and the lower shell 20, the grinding bin is fixedly assembled on the frame 5, and a ventilation opening 22 is further arranged at the lower part of the grinding bin. The grinding roller device 7 is arranged in a grinding bin, a feed chute 8 and a discharge chute 19 are respectively arranged on the outer side surface of the lower shell 20, a feed back hopper 9 connected with the feed chute 8 and the discharge chute 19, a stator and rotor 10 connected with the feed back hopper 9 and a movable rotor 11 coaxially arranged with the stator and rotor 10 are arranged in the grinding bin, a powder selecting motor 12 and a powder selecting speed reducer 13 which are assembled in a linkage manner with the movable rotor 11 are arranged on the outer side of the upper shell 14, a water spray pipe 16 is arranged at the bottom end of the upper shell 14, and a powder selecting channel of a communication pipeline 15 is formed among the feed back hopper 9, the stator and rotor 10 and the movable rotor 11. The stator and rotor 10 and the movable rotor 11 are movably assembled in a relative rotation way, meanwhile, the stator and rotor 10 is connected with the feed back hopper 9, and the movable rotor 11 is driven by a powder selecting motor 12 and a powder selecting speed reducer 13. By the rotation of the rotor 11, a relatively negative pressure is generated, and particles having a smaller particle diameter are guided to flow upward into the duct 15. The moving rotor 11 rotates with a certain period, and by the frequency thereof being blocked, relatively large particles can be effectively prevented from entering the pipe 15. The grinding roller device 7 comprises a grinding roller, a shaft and a driving piece, and the connecting rod mechanism is used for enabling the grinding roller in the grinding roller device 7 to swing for a certain angle, so that the angle adjustment and the maintenance are convenient, and sundries in the gap between the grinding roller device 7 and the grinding disc 21 are cleaned. The specific design of the grinding roller device 7 and the rotor 11 is varied and is not described or limited here too much for better protection.

The connecting rod mechanism comprises an overhaul oil cylinder 2, a pressurizing oil cylinder 4, a base 3 and a transmission arm 6, wherein one ends of the overhaul oil cylinder 2 and the pressurizing oil cylinder 4 are arranged on the base 3, and the other ends of the overhaul oil cylinder 2 and the pressurizing oil cylinder 4 are respectively connected with the transmission arm 6 to form a four-connecting-rod movement mechanism with the degree of freedom of 1. From the mechanical aspect, the pressure of the pressurizing oil cylinder 4 is loaded onto the grinding roller device 7 through the transmission arm 6, so that the static force is transferred, the construction waste moves towards the edge of the grinding disc 21 under the action of the centrifugal force of the grinding disc 21, and is crushed under the extrusion of the grinding roller device 7, the conversion of kinetic energy to overcome internal energy is realized, and the crushed material enters the circular storage bin 17 through the pipeline 15 under the action of gas, so that the hydrodynamic transfer is realized.

The grinding roller devices 7 are symmetrically arranged on two sides of the grinding disc 21, and an arc-shaped gap is formed between the grinding roller devices 7 and the grinding disc 21, so that the construction waste is concentrated and fully extruded and crushed.

The connecting line of the notch between the feed chute 8 and the discharge chute 19 is 180 degrees, and part of the garbage particles meeting the conditions directly enter the discharge chute 19.

The vertical mill body further comprises a main motor 26 and a main speed reducer 23 which are positioned on a fixed platform 28, the grinding disc 21 is connected with the main speed reducer 23 through an elastic membrane coupling I24, and the main speed reducer 23 is connected with the main motor 26 through an elastic membrane coupling II 25. The millstone 21 is driven by the main motor 26 and the main speed reducer 23, and is driven by the selected coupler, so that the millstone is efficient and stable.

The feeding chute 8 is provided with a wear-resistant steel plate 801, a roller 802, a rotating shaft 803 and a permanent magnet block 804, the wear-resistant steel plate 801 is at least partially fully distributed on the wall of the feeding chute 8, the rotating shaft 803 is movably assembled on the wall of the feeding chute 8, the roller 802 and the rotating shaft 803 are assembled and rotated in a linkage manner, the roller 802 is axially projected to be plum blossom-shaped, and the permanent magnet block 804 is arranged at the concave position of the outer contour of the roller 802. The drum 802 may further screen the construction waste, pick up some of the metal therein, and also act as a barrier to bulk waste.

The grinding disc 21 is axially provided with a thrust bearing 31, the grinding disc 21 is radially provided with a double-row self-aligning roller bearing 32, a bearing seat 29 is arranged below the thrust bearing 31, an oil pipe 30 is arranged between the bearing seat 29 and the grinding disc 21, the lower end of the bearing seat 29 is provided with a bearing end cover 33, labyrinth seal is formed among the bearing seat 29, the bearing end cover 33 and the grinding disc 21, and a sealing ring 34 is arranged between the bearing end cover 33 and the grinding disc 21. The labyrinth seal provides a throttling or sealing effect even though the medium passes through a tortuous and narrow passage, and is double-secured in cooperation with the seal ring 34. The thrust bearing 31 and the double-row self-aligning roller bearing 32 play roles in sharing load and reducing the rotation resistance of the grinding disc 21. Lubrication is performed through the oil pipe 30, and running smoothness and stability are improved.

Six supporting legs 27 are arranged at the lower end of the transport vehicle 1, so that stable operation of the vertical mill body is ensured.

The center line of the grinding roller device 7 forms an included angle of 12 degrees with the horizontal direction, which is beneficial for the construction waste to enter and extrude.

The upper shell 14 and the lower shell 20 are connected through flanges, so that the assembly and the disassembly are convenient.

Summary of the principles: the invention is designed aiming at treating construction waste, the treated objects are mainly waste bricks and tiles and waste concrete, waste metal and waste bamboo are firstly recovered at the site of the construction waste, then the construction waste is concentrated, and the construction waste is pre-crushed by a jaw crusher, wherein the particle size after crushing is required to be not more than 40mm. Before the vertical mill is used for treating the construction waste, in order to ensure the stable operation of the vertical mill, the supporting legs 27 are put down by the carrier vehicle 1, and each group of supporting legs 27 are leveled. The pre-crushed construction waste is fed into the feeding chute 8 through the conveying equipment, is blanked to the center of the millstone 21 through the feeding back hopper 9, and meanwhile, the permanent magnet blocks 804 of the feeding chute 8 adsorb metals in the construction waste to prevent impact damage caused by entering the vertical mill. The main motor 26 realizes the periodic movement of the millstone 21 through the main speed reducer 23 and the diaphragm coupling, the construction waste escapes to the edge of the millstone 21 under the action of the centrifugal force of the millstone 21, and is crushed under the extrusion of the millstone roller device 7, and in order to stabilize the material layer of the millstone 21 and reduce dust pollution while crushing operation, spraying water is usually carried out through the water spraying pipe 16, the crushed construction waste particles enter the stator and rotor 10 and the movable rotor 11 under pneumatic conveying, two types of particles are generated under the screening of the movable rotor 11, the particles with the micron level enter the circular bin 17 through the pipeline 15, and are collected and packed through the dust collecting cloth bag 18, wherein the particles are mainly brick and tile micro powder and concrete micro powder, and can be used as raw materials for preparing bricks and tiles; another part of the coarser particles falls back into the discharge chute 19 through the return hopper 9 and is then collected and packed, this part of the particles having a particle size generally below 4.75mm, forming fine aggregates, granular loose material which acts as a skeleton or filling in the concrete. The finished products are packed and transported away, so that secondary pollution is avoided, economic value is created, and the finished products can be moved to the next construction waste site along with the transport vehicle 1 after the construction waste treatment in the area is completed.

The method has the advantages of simple process, low investment, high recovery rate, small pollution, flexibility and convenience, can overcome the defects of the traditional treatment mode and the defects of the treatment process, plays a great role in recovering the brick and tile micro powder and the concrete micro powder, realizes the recycling of the building waste in the treatment of the building waste, and creates economic value.

In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention, while the basic principles, main features, and advantages of the present invention are shown and described above, and it should be understood by those skilled in the art.

Claims

1. The utility model provides a portable vertical mill that handles construction waste, its characterized in that, including taking fixed platform's transport vechicle and locating vertical mill body and circular feed bin on the fixed platform, be equipped with the pipeline between vertical mill body and the circular feed bin, be equipped with dust collection sack under the circular feed bin, vertical mill body includes link mechanism, frame, grinding roller device, upper housing, lower casing and mill, link mechanism and grinding roller device linkage assembly, fixed connection forms the mill bin between upper housing and the lower casing, and the mill bin fixed assembly is on the frame, grinding roller device locates in the mill bin, the lower casing lateral surface is equipped with feed chute and blown down groove respectively, be equipped with the feed back hopper that links to each other with feed back chute and blown down groove in the mill bin, the rotor of the coaxial movable assembly with the rotor that links to each other, feed chute department is equipped with wear-resistant steel plate, cylinder, axis of rotation and permanent magnet block, the feed chute cell wall is equipped with to wear-resistant steel plate, the movable assembly, the cylinder is equipped with rotation axis rotation, the axial projection is the quincuncial motor forms the mill, and is equipped with the rotor housing, is equipped with the radial seal sleeve, is equipped with the end cover, be equipped with the thrust bearing housing, be equipped with the radial seal between the rotor is equipped with on the rotor, the radial seal sleeve is equipped with on the rotor, be equipped with the end cover, be equipped with between the rotor housing and the radial seal sleeve, the radial seal sleeve is equipped with the thrust bearing on the end cover, and a sealing ring is arranged between the bearing end cover and the grinding disc.

2. The movable vertical mill for treating construction waste according to claim 1, wherein the link mechanism comprises an overhaul cylinder, a pressurization cylinder, a base and a transmission arm, one ends of the overhaul cylinder and the pressurization cylinder are arranged on the base, and the other ends of the overhaul cylinder and the pressurization cylinder are respectively connected with the transmission arm to form a four-link motion mechanism with the degree of freedom of 1.

3. A mobile vertical mill for the treatment of construction waste according to claim 1 or 2, characterized in that the grinding roller means are symmetrically arranged on both sides of the grinding disc, between which an arc-shaped gap is formed.

4. A mobile vertical mill for treating construction waste according to claim 1, wherein the line connecting the slot opening between the feed chute and the discharge chute is 180 degrees.

5. A mobile vertical mill for processing construction waste according to claim 3, wherein the vertical mill further comprises a main motor and a main speed reducer which are arranged on the fixed platform, wherein the grinding disc is connected with the main speed reducer through an elastic membrane coupling one, and the main speed reducer is connected with the main motor through an elastic membrane coupling two.

6. A mobile vertical mill for treating construction waste according to claim 1, wherein six legs are provided at the lower end of the carriage.

7. A mobile vertical mill for treating construction waste according to claim 3, wherein the centre line of the mill roll means is at an angle of 12 degrees to the horizontal.

8. A mobile vertical mill for treating construction waste according to claim 1, wherein the upper and lower housings are connected by flanges.