WO2022110706A1

WO2022110706A1 - Water-free deslimer for clay-containing blocks

Info

Publication number: WO2022110706A1
Application number: PCT/CN2021/096107
Authority: WO
Inventors: 任光明; 任逸
Original assignee: 郑州广益达资源新技术有限公司
Priority date: 2020-11-30
Filing date: 2021-05-26
Publication date: 2022-06-02
Also published as: CN112387660A

Abstract

Disclosed in the present invention is a water-free deslimer for clay-containing blocks, comprising a frame, wherein a desliming tank is provided on the frame, a feed inlet is connected to the desliming tank from the rear upper part of the desliming tank, and a discharge outlet is provided at the front lower part of the desliming tank; a material turnover device is provided in the desliming tank, and a soil scraping roller set is provided below the material turnover device and adjacent to the material turnover device; a power device for turning material and a power device for scraping soil are provided on the frame, and the power device for turning material drives the material turnover device by means of a transmission mechanism for turning material; the power device for scraping soil drives the soil scraping roller set by means of a transmission mechanism for scraping soil; and the space between the soil scraping roller set and the ground accommodates fallen soil. In the present invention, there is no need to dry, no need to wash, and no need to transport block materials out of a mine site, thereby increasing the separation efficiency, reducing the energy consumption and the separation cost, greatly reducing negative effects brought by the separation on environmental protection, having the effect of reducing costs and increasing efficiency for companies, and having positive environmental protection significance for the society, such as preventing soil depletion in the mine site and protecting the environment.

Description

Clay-containing lumps anhydrous desliming machine

technical field

The invention relates to the technical field of desliming of lumps, in particular to an anhydrous desliming machine for lumps.

Background technique

The block desliming machine is widely used in the desliming operation of clay-containing piled ores, construction wastes, root block plants and other blocks.

At present, there are two main methods for desliming of lumps:

One is to use a vibrating screen to screen out the soil bonded on the block,

Another method is to use the water washing method to remove the soil bonded on the block through a cylindrical screen or a spiral washing machine.

Using the first method, the vibrating screen can screen out the clay contained in the lumps with less moisture and loose clay. When the moisture is large, the clay will block the screen and affect the screening effect. Therefore, the usual method is to first The clay is dried, then mechanically broken up, and then screened with a vibrating screen. Since this method needs to dry a large amount of soil, consumes a lot of energy, and causes pollution to the environment, the cost of desliming treatment is also high.

Using the second method, the method of washing with water is also a commonly used method for desliming of lumps, but a large amount of mud is produced after washing, which causes serious pollution to the environment. The drying treatment of mud requires investment in equipment and consumes a lot of costs. At present, the environmental protection departments of various countries in the world restrict the use of water washing process for units without mud treatment capacity.

There are a large number of accumulated bauxite in Guangxi, Guizhou, Yunnan and other places in my country, with a total reserve of more than 1 billion tons, of which Guangxi has a large mining volume. The soil is excavated and transported to the ore washing plant, and the ore is deslimed and washed out through crushing, cylinder washing machine, and spiral washing machine. The destruction of the natural environment is very serious, and the precious soil is abandoned in the tail mud dam, resulting in environmental disasters.

At present, Guangxi has begun to prohibit the water washing process. After the water washing process is prohibited, only the processes of drying, breaking up and screening can be used, which brings new dust pollution, coal combustion pollution, and high desliming processing costs.

After years of mining, the global laterite-type bauxite has begun to be diluted, and desliming processing is also necessary, but the above two processes are difficult to meet the processing and production of a large number of bauxite.

The development of equipment for desliming in mines and the separation of ore and soil in the mine can directly return the soil to farming, minimize the impact on the environment, and at the same time greatly reduce the cost of desliming processing. The environment is important.

technical problem

The object of the present invention is to provide a clay-containing block anhydrous desliming machine suitable for desliming at the mine site, which does not need to dry the soil and causes high energy consumption, and can separate the block material and the soil at the mine site, The energy cost or transportation cost of the separation process can be saved, and the separated soil can be directly backfilled to the mine site, which plays a positive role in environmental protection.

technical solutions

In order to achieve the above-mentioned purpose, the anhydrous desilter for clay-containing lumps of the present invention comprises a frame, and the frame is provided with a desilting tank with an open lower end. A feed port is connected upward, and a discharge port is provided downward on the front side of the desliming tank;

In the desliming tank, there is a turning device for moving the material from the feeding port to the discharging port. Below the turning device and adjacent to the turning device, there is a scraping roller group. Both ends of the axial direction are mounted on the frame through bearings;

The frame is provided with a power device for turning material and a power device for scraping mud. The power device for turning material drives the turning device through the transmission mechanism for turning material; the power device for scraping mud drives the mud scraping roller group through the transmission mechanism for mud scraping; The space between the scraping rollers and the ground is used to accommodate the fallen soil;

The scraping roller group includes a number of scraping rollers with parallel and closely arranged axes. Multiple corrugated convex rings are evenly spaced on the circumferential surface of the scraping roller along the axis direction of the scraping roller. The adjacent corrugated convex rings and the circumference of the scraping roller A closed-loop corrugated groove is formed between the surfaces; the closed-loop corrugated groove can accommodate, twist and tear the soil on the block material when the scraping roller rotates;

The turning device includes a turning spindle, and the axial ends of the turning spindle are installed on the frame through bearings; a number of turning claws are installed at intervals on the turning spindle, the power device for turning is a gear motor, and the transmission for turning The mechanism is a gear transmission mechanism or a belt transmission mechanism or a coupling, and the output shaft of the turning power device drives the turning spindle to rotate through the turning transmission mechanism.

The power device for mud scraping is a gear motor, and the transmission mechanism for mud scraping is a gear transmission mechanism or a sprocket transmission mechanism. One end of each mud scraping roller is installed with a gear for receiving the power input from the mud scraping transmission mechanism. The device drives each mud scraping roller to rotate through the mud scraping transmission mechanism.

There are horizontal rods on the frame below the scraping roller group, and the horizontal rods are in one-to-one correspondence with the scraping rollers above them. Each horizontal rod is located directly below the corresponding scraping roller; The upper scraping roller is provided with a set of scraping devices;

Each group of mud scraping devices includes a plurality of mud scraping devices arranged along the axial direction of the mud scraping rollers, and the mud scraping devices in each group of mud scraping devices are in one-to-one correspondence with the closed-loop corrugated grooves on the corresponding mud scraping rollers;

The mud scraping device includes a support rod arranged on the horizontal rod directly under the corresponding mud scraping roller. The top end of the supporting rod is adjacent to the bottom end of the corresponding mud scraping roller. The middle part of the supporting rod is hinged with an elastic scraping rod. The tangential direction of the corresponding scraping roller is inclined and its top end extends into the corresponding closed-loop corrugated groove; between the top of the support rod and the middle of the scraping rod, there is a groove for the top of the scraping rod to be pressed against the bottom of the closed-loop corrugated groove. the tension spring.

beneficial effect

The present invention has the following advantages:

The invention drives the block material to move from the feed port to the discharge port through the material turning device, and separates the soil on the block material through the scraping roller group, which does not need to dry the soil to avoid high energy consumption caused by drying, and does not need to Washing with water can separate the soil at the mine site without water supply, so as to avoid the transportation cost and efficiency drop caused by transporting the material to a distance, improve the separation efficiency and reduce the separation cost. Since it can be separated on site, the separated soil can be directly returned to the field, avoiding the soil depletion, dust pollution and tailings dam pollution caused by the loss of soil in the mine (whether washing or drying in the past will cause the mine to lose soil). and other environmental issues.

In short, the present invention does not require drying, washing, and transportation of bulk materials out of the mine, improves separation efficiency, reduces energy consumption and separation cost, and greatly reduces the negative impact of separation on environmental protection. The effect of reducing costs and increasing efficiency has positive environmental protection significance for the society, such as preventing soil depletion in mines and protecting the environment.

When the closed-loop corrugated groove rotates, the position of the closed-loop corrugated groove corresponding to any height will move axially. It acts as containment, twisting and tearing, and can effectively separate the soil including clay from the bulk material.

The soil scraped by the scraping rod falls on the ground through the space between the horizontal rods.

The setting of the scraping device can continuously scrape off the soil separated from the block material and contained in the closed-loop corrugated groove during the rotation of each scraping roller, so as to maintain the empty groove state of the closed-loop corrugated groove, so as to ensure Continuously and efficiently perform soil separation operations.

Description of drawings

Fig. 1 is the structural representation of the present invention;

FIG. 2 is a view taken along the line AA of FIG. 1;

Fig. 3 is the enlarged view of A place in Fig. 1;

Figure 4 is a schematic diagram of the structure of a section of scraping roller.

BEST MODE FOR CARRYING OUT THE INVENTION

As shown in Fig. 1 to Fig. 4 , the anhydrous desilter for clay-containing lumps of the present invention comprises a frame 1, and the frame 1 is provided with a desilting tank 2 surrounded by a vertical plate with an open lower end, so as to The moving direction of the material is forward, the rear side of the desliming tank 2 is connected with a feed port 3 upward, and the front side of the desliming tank 2 is provided with a discharge port 4 downward;

The desliming tank 2 is provided with a turning device for moving the material from the feeding port 3 to the discharging port 4. There is a scraping roller set under the turning device adjacent to the turning device, and each scraper in the scraping roller set Both axial ends of the mud roller are mounted on the frame 1 through bearings; the bearings are conventional technology, not shown in the figure.

The frame 1 is provided with a power device 5 for turning materials and a power device 6 for scraping mud. The power device 5 for turning materials drives the turning device through the transmission mechanism 7 for turning materials; the power device 6 for scraping mud passes through the transmission mechanism for scraping mud 8. Drive the scraping roller group; the front end of the scraping roller group is adjacent to the discharge port 4, and the space between the scraping roller group and the ground is used to accommodate the fallen soil.

The invention drives the block material to move from the feed port 3 to the discharge port 4 through the turning device, and separates the soil on the block material through the scraping roller group, which does not need to dry the soil and avoids the high energy consumption caused by drying. There is also no need for water washing, and it can separate the soil at the mine site lacking water supply, so as to avoid the transportation cost and efficiency drop caused by transporting materials to a distance, improve the separation efficiency and reduce the separation cost. Since it can be separated on site, the separated soil can be directly returned to the field, avoiding the soil depletion, dust pollution and tailings dam pollution caused by the loss of soil in the mine (whether washing or drying in the past will cause the mine to lose soil). and other environmental issues.

The turning device includes a turning main shaft 9, the axial ends of the turning shaft 9 are mounted on the frame 1 through bearings; a number of turning claws 10 are installed on the turning main shaft 9 at intervals, and the turning power device 5 is a deceleration device. The motor, the transmission mechanism 7 for turning the material is a gear transmission mechanism or a belt transmission mechanism or a coupling, and the output shaft of the power device 5 for turning the material drives the turning spindle 9 to rotate through the transmission mechanism 7 for turning the material.

The scraping roller group includes a plurality of scraping rollers 11 with parallel and closely arranged axes. The circumferential surface of the scraping roller 11 is provided with a plurality of corrugated convex rings 12 evenly spaced along the axis direction of the mud scraping roller 11. The adjacent corrugated convex rings 12 A closed-loop corrugated groove 13 is formed between it and the circumferential surface of the scraping roller 11; the closed-loop corrugated groove 13 can accommodate, twist and tear the soil on the block material when the scraping roller 11 rotates;

The power device 6 for scraping mud is a gear motor, the transmission mechanism 8 for scraping mud is a gear transmission mechanism or a sprocket transmission mechanism, and one end of each mud scraping roller 11 is installed with a gear for receiving the power input from the transmission mechanism 8 for scraping mud, The mud scraping power device 6 drives the mud scraping rollers 11 to rotate through the mud scraping transmission mechanism 8 .

The gear transmission mechanism, the belt transmission mechanism and the coupling are all conventional technologies. The figure does not show the transmission mechanism 7 for turning material, the transmission mechanism 8 for scraping mud, and the gears installed on each mud scraping roller 11 in detail. Wherein, the axial direction of each scraping roller 11 may be parallel to the axial direction of the material turning main shaft 9, or may be perpendicular to the axial direction of the material turning main shaft 9 or at any other angle.

When the closed-loop corrugated groove 13 rotates, the position of the closed-loop corrugated groove 13 corresponding to any height will move axially, so the closed-loop corrugated groove 13 can accommodate the soil on the block material at the same time. , which can contain, twist and tear the soil, and can effectively separate the soil including clay from the bulk material.

Horizontal rods 14 are arranged on the frame 1 under the 11 groups of scraping rollers, and the horizontal rods 14 correspond to the scraping rollers above them one by one, and each horizontal rod 14 is located directly below the corresponding scraping rollers; 14 is provided with a set of scraping devices corresponding to the mud scraping roller 11 directly above it; both ends of the horizontal rod 14 are connected to the frame 1 .

Each group of mud scraping devices includes a plurality of mud scraping devices 15 arranged along the axial direction of the mud scraping rollers 11 . correspond;

The mud scraping device 15 includes a support rod 16 arranged on the horizontal rod 14 directly below the corresponding mud scraping roller 11. The top end of the supporting rod 16 is adjacent to the bottom end of the corresponding mud scraping roller 11, and the middle part of the supporting rod 16 is hinged with an elastic scraper. The material rod 17, the scraping rod 17 is inclined along the tangential direction of the corresponding mud scraping roller 11 and its top end extends into the corresponding closed-loop corrugated groove 13; the top of the support rod 16 and the middle part of the scraping rod 17 are connected with The top end of the rod 17 is pressed against the tension spring 18 at the bottom of the closed-loop corrugated groove 13 .

Among them, the scraping rods 17 are inclined along the tangential direction of the corresponding mud scraping rollers 11. It should not be understood that the scraping rods 17 must not deviate from the tangential direction of the corresponding mud scraping rollers 11. Those skilled in the art can easily understand that in order to achieve the purpose of mud scraping Under the guidance of , the scraping rod 17 can deviate from the tangential direction of the corresponding scraping roller 11 moderately. The soil scraped by the scraping rods 17 falls on the ground through the space between the horizontal rods 14 .

The setting of the mud scraping device 15 can continuously scrape off the mud separated from the block material and accommodated in the closed-loop corrugated groove 13 during the rotation of each mud scraping roller 11 , so as to keep the empty groove of the closed-loop corrugated groove 13 state, so as to ensure continuous and effective soil separation operations.

Industrial Applicability

When in use, the anhydrous desliming machine for the clay-containing bulk material of the present invention is directly placed in the mine, and the bulk material is loaded into the desliming tank 2 from the feed port 3 nearby. The power device 5 for turning material and the power device 6 for scraping mud are activated, and the turning main shaft 9 turns the material through the turning claw 10 and gradually moves the block material to the discharge port 4 . The block material falls on the scraper roller 11 group in the desliming tank 2 , and the soil attached to the block material is embedded in the closed-loop corrugated groove 13 . With the continuous rotation of the scraping roller 11, the position of the closed-loop corrugated groove 13 corresponding to any height will move axially. Therefore, the closed-loop corrugated groove 13 can accommodate the soil on the block material and simultaneously absorb the soil. It acts as containment, twisting and tearing, and can effectively separate the soil including clay from the bulk material. The separated soil is contained in the closed-loop corrugated groove 13 , and with the continuous rotation of the scraping roller 11 , the soil in the closed-loop corrugated groove 13 is scraped off when it encounters the scraping rod 17 . Due to the elasticity of the mud scraper, it can adapt to the axial movement of the closed-loop corrugated groove 13 . The scraped soil falls on the ground, and the staff operates the transport machinery to remove the soil. It is also possible to install a conveyor belt directly on the ground below the horizontal rod 14 to directly transport the fallen soil away.

Claims

Anhydrous desliming machine for clay-containing lumps, including a frame, characterized by:

The frame is provided with a desliming tank with an open lower end, and the moving direction of the material is the forward direction.

In the desliming tank, there is a turning device for moving the material from the feeding port to the discharging port. Below the turning device and adjacent to the turning device, there is a scraping roller group. Both ends of the axial direction are mounted on the frame through bearings;

The frame is provided with a power device for turning material and a power device for scraping mud. The power device for turning material drives the turning device through the transmission mechanism for turning material; the power device for scraping mud drives the mud scraping roller group through the transmission mechanism for mud scraping; The space between the scraping rollers and the ground is used to accommodate the fallen soil;

The scraping roller group includes a number of scraping rollers with parallel and closely arranged axes. Multiple corrugated convex rings are evenly spaced on the circumferential surface of the scraping roller along the axis direction of the scraping roller. The adjacent corrugated convex rings and the circumference of the scraping roller A closed-loop corrugated groove is formed between the surfaces; the closed-loop corrugated groove can accommodate, twist and tear the soil on the block material when the scraping roller rotates.
The clay-containing block anhydrous desliming machine according to claim 1, is characterized in that:

The turning device includes a turning spindle, and the axial ends of the turning spindle are installed on the frame through bearings; a number of turning claws are installed at intervals on the turning spindle, the power device for turning is a gear motor, and the transmission for turning The mechanism is a gear transmission mechanism or a belt transmission mechanism or a coupling, and the output shaft of the turning power device drives the turning spindle to rotate through the turning transmission mechanism.
The anhydrous desilter for clay-containing lumps according to claim 1 or 2, characterized in that: the power device for scraping mud is a geared motor, and the transmission mechanism for scraping mud is a gear transmission mechanism or a sprocket transmission mechanism, and each One end of the scraping rollers is equipped with gears for receiving the power input from the transmission mechanism for scraping mud, and the power device for scraping mud drives each scraping roller to rotate through the transmission mechanism for scraping mud.
The anhydrous desilter for clay-containing lumps according to claim 3, wherein the frame below the scraping roller group is provided with a horizontal rod, and the horizontal rod is in one-to-one correspondence with the scraping rollers above it. The horizontal rods are all located directly below the corresponding scraping rollers; a set of scraping devices are arranged on the horizontal rods corresponding to the scraping rollers directly above it;

Each group of mud scraping devices includes a plurality of mud scraping devices arranged along the axial direction of the mud scraping rollers, and the mud scraping devices in each group of mud scraping devices are in one-to-one correspondence with the closed-loop corrugated grooves on the corresponding mud scraping rollers;

The mud scraping device includes a support rod arranged on the horizontal rod directly under the corresponding mud scraping roller. The top end of the supporting rod is adjacent to the bottom end of the corresponding mud scraping roller. The middle part of the supporting rod is hinged with an elastic scraping rod. The tangential direction of the corresponding scraping roller is inclined and its top end extends into the corresponding closed-loop corrugated groove; between the top of the support rod and the middle of the scraping rod, there is a groove for the top of the scraping rod to be pressed against the bottom of the closed-loop corrugated groove. the tension spring.