CN213000600U - Coarse slime sorting machine - Google Patents

Abstract

The utility model discloses a coarse coal slime sorter, its include the compounding baffle-box that top-down communicates in proper order, go up the machine body and organism down, set up electric actuator in the intercommunication space, the last lag cylinder that is used for protecting electric actuator that has cup jointed of electric actuator, the upper portion of compounding baffle-box is provided with ore pulp pan feeding mouth, the bottom of compounding baffle-box sets up the ore pulp discharge gate, and butt joint ore pulp discharge gate is provided with the pan feeding well that extends to the inside of organism, the lag cylinder is located the pan feeding well, the bottom that corresponds electric actuator in organism bottom down sets up the tailing bin outlet, coarse coal slime sorter is still including setting up the concentrate overflow launder that the body that is used for collecting to go up the machine body and spills over the concentrate, be provided with the concentrate discharge gate. The utility model provides a coarse coal slime sorter, it has that equipment is reliable and stable, select separately effectual, flotation clean coal ash content is low, advantage such as the rate of recovery is high.

Description

Coarse slime sorting machine

Technical Field

The utility model relates to a coarse coal slime sorter is particularly useful for the coarse grain coal slime that the coal slime content is higher, the ash content is higher and selects separately, belongs to the coal mine with coarse coal slime sorting facilities technical field.

Background

With the continuous development of the coal preparation industry and the continuous improvement of the ash content requirement of users on commercial coal, most coarse coal slime can not be directly doped into clean coal but only can be doped into middling coal, the yield of the clean coal is influenced, and the economic benefit is reduced; along with the improvement of the mechanized coal mining technology, the coal slime content in washed raw coal is gradually increased, the problem of coarse coal slime separation is more urgent to solve, and for a power coal separation plant, the coarse coal slime recovery condition can be reasonably controlled according to the coal quality condition, low-ash clean coal is separated, the quality of commercial coal is ensured, and the recovery rate is ensured. At present, the separation equipment of coarse coal slime commonly used in China mainly comprises a coal slime dense medium cyclone, a water medium cyclone, a spiral separator, a coarse coal slime settling disturbing bed separator and the like, and the coarse coal slime settling disturbing bed separator is popularized and applied and has a good effect.

The coarse slime settling disturbing bed separator is a floating-settling type separator which is formed by mixing ascending water flow with certain pressure and sprayed out from a water tank at the bottom of a cylinder body with materials flowing in a feeding device and forming a turbulent interference effect in the cylinder body, and the separation effect of the separator is related to the feeding pressure, the feeding rotational flow distribution, the uniformity of material dispersion, the pressure and the flow of the ascending water flow, the uniformity of dispersion, the transmission accuracy of a pressure sensor, the performance of an electric actuating mechanism and other factors.

The utility model patent with the patent number of CN201720302800.8 discloses a coarse coal slime sorting machine, the invention patent with the patent number of CN201310702163.X discloses another coarse coal slime sorting machine, and the two coarse coal slime sorting machines store the following defects: 1) the ore pulp feeding port is positioned in a clean coal overflow working area, so that clean coal flotation and overflow are disturbed, and overflow concentrate contains gangue, so that the flotation effect is poor; 2) the pressure sensor is not provided with a protection device, so that the coal slurry flow impacts the pressure sensor to influence the transmission accuracy of the pressure sensor; 3) the electric actuating mechanism penetrates through the feeding box, and the coal slime flow seriously scours actuating rods in the electric actuating mechanism, so that the service life of the actuating rods is shortened; 4) because the size of the spray water tank is too large, the pressure ratio of water flow passing through the turbulent plate is smaller, the pressure of the spray pump is increased, the kinetic energy consumption is high, and the operation cost of equipment is increased; 5) the ascending spraying water flow is uneven and has poor adverse current collision effect with the descending coal slime, so that the phenomena of gangue in overflow concentrate, concentrate in discharged tailings and poor separation effect are caused.

Accordingly, further improvements and improvements are needed in the art.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, a coarse coal slime separator is proposed, and the following technical solutions are provided:

the utility model provides a coarse coal slime sorter, its includes the compounding baffle-box that top-down communicates in proper order, goes up the machine body and organism down, sets up electric actuator in the intercommunication space, the last lag cylinder that is used for protecting electric actuator that has cup jointed of electric actuator, the upper portion of compounding baffle-box is provided with the ore pulp pan feeding mouth, the bottom of compounding baffle-box sets up the ore pulp discharge gate, and butt joint ore pulp discharge gate is provided with the pan feeding well that extends to the inside of organism, the lag cylinder is located the pan feeding well, the bottom that the organism bottom corresponds electric actuator down sets up the tailing bin outlet, coarse coal slime sorter is still including setting up the concentrate overflow launder that the body that is used for collecting the machine body and spills over the concentrate in last organism periphery.

Further, the inside last baffle and the lower baffle that is provided with parallel from top to bottom of compounding baffle-box, it is located the below of ore pulp pan feeding mouth to go up the baffle, it is located baffle center department to be provided with first through-hole and first through-hole on the baffle to go up, it just to be provided with the second through-hole on the baffle down the second through-hole sets up a plurality ofly, and each second through-hole evenly distributed is on the baffle down.

Further, the electric actuator comprises an actuator arranged at the top of the mixing buffer box and an actuating rod connected with the actuator and vertically arranged in the communicating space. The periphery of executive rod has cup jointed a lag sleeve, the lower extreme of lag sleeve corresponds a back taper section of thick bamboo and is provided with a second and falls a toper section of thick bamboo, the terminal surface of a first back taper section of thick bamboo and a second and fall a toper section of thick bamboo all is located the bottom plane of organism. The lower end of the execution rod is provided with a wear-resistant cone, and the wear-resistant cone is in butt joint with the tailing discharge port.

Furthermore, the lower extreme of charge well sets up a first back taper section of thick bamboo, the lower extreme of lag sleeve corresponds a first back taper section of thick bamboo and is provided with a second back taper section of thick bamboo, the terminal surface of a first back taper section of thick bamboo and a second back taper section of thick bamboo all is located the bottom plane of last organism.

Furthermore, the cone angle of the first inverted cone-shaped cylinder is gamma, the gamma is 80-100 degrees, the cone angle of the second inverted cone-shaped cylinder is beta, and the beta is 80-100 degrees.

Preferably, the taper angle γ of the first reverse tapered cylinder is equal to the taper angle β of the second reverse tapered cylinder.

Furthermore, a funnel-shaped flow stabilizing plate taking the central axis of the lower machine body as a symmetry axis is arranged at the inner bottom of the lower machine body, and the included angle delta between the funnel-shaped flow stabilizing plate and the horizontal plane is preferably 15-20 degrees. The improved water jet mill is characterized in that a plurality of water spray holes are uniformly formed in the funnel-shaped flow stabilizing plate, a plurality of water inlet pipes are uniformly arranged at the bottom of the lower machine body corresponding to the funnel-shaped flow stabilizing plate, and the tailing discharge port is located at the center of the bottom of the funnel-shaped flow stabilizing plate.

Preferably, the inlet pipe sets up 4, and 4 inlet pipes correspond infundibulate stabilizer and evenly set up in the bottom of organism down.

Further, the coarse slime sorter also comprises a support which is arranged between the mixing buffer box and the lower machine body and used for supporting the mixing buffer box, the top of the support is fixedly connected with the bottom of the mixing buffer box, and the support is positioned above the concentrate overflow trough.

Further, a plurality of inclined flow stabilizing plates which are parallel left and right are arranged in the upper machine body, the horizontal installation angle of the inclined flow stabilizing plates is alpha, and alpha is preferably 60-70 degrees.

Preferably, the upper body is an inclined square body, and the inclined flow stabilizing plate is parallel to the left side plate and the right side plate of the upper body respectively.

Furthermore, a flow stabilizing net is horizontally arranged in the lower machine body and is positioned above the funnel-shaped flow stabilizing plate.

Preferably, the lower body is a square body.

Further, a pressure sensor is arranged in a communicating space between the upper machine body and the lower machine body, and a protection pipe used for protecting a connecting rod of the pressure sensor from being interfered by external ore pulp is sleeved on the periphery of the pressure sensor.

Advantageous effects

The utility model provides a coarse coal slime sorter, it has equipment reliable and stable, selects separately effectual, flotation clean coal ash content low, advantage such as the rate of recovery is high.

Drawings

Fig. 1 is a schematic structural diagram of a coarse coal slime sorting machine in embodiment 1 of the present invention;

fig. 2 is a left side view of the coarse coal slime sorting machine in embodiment 1 of the present invention.

In the figure: 100-mixing buffer tank, 110-ore pulp feeding port, 120-upper partition plate, 130-lower partition plate, 200-bracket, 300-concentrate overflow trough, 310-concentrate discharging port, 400-upper machine body, 410-inclined flow stabilizing plate, 420-feeding well, 421-first inverted cone, 500-lower machine body, 510-flow stabilizing net, 520-funnel flow stabilizing plate, 530-water inlet pipe, 600-tailing discharging pipe, 700-electric actuator, 710-protecting sleeve, 711-second inverted cone, 800-pressure sensor, 810-protecting pipe and 900-PLC control box.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the following description, together with the drawings of the present invention, clearly and completely describes the technical solution of the present invention, and based on the embodiments in the present application, other similar embodiments obtained by those skilled in the art without creative efforts shall all belong to the protection scope of the present application. In addition, directional terms such as "upper", "lower", "left", "right", etc. in the following embodiments are directions with reference to the drawings only, and thus, the directional terms are used for illustration and not for limitation of the present invention.

Detailed description of the preferred embodiment 1

A coarse slime separator, as shown in fig. 1-2, which comprises a mixing buffer box 100, an upper machine body 400 and a lower machine body 500 which are sequentially communicated from top to bottom, wherein an electric actuator 700 is arranged in a communication space, a protective sleeve 710 for protecting the electric actuator 700 is sleeved on the electric actuator 700, the upper part of the mixing buffer tank 100 is provided with an ore pulp inlet 110, the bottom of the mixing buffer tank 100 is provided with an ore pulp outlet, the butted ore pulp discharge port is provided with a feeding well 420 extending to the inside of the upper machine body 400, the protective sleeve 710 is positioned in the feeding well 420, the bottom of the lower machine body 500 is provided with a tailing discharging hole corresponding to the bottom end of the electric actuator 700, the coarse slime separator also comprises a concentrate overflow trough 300 for collecting concentrate overflowing from the upper body 400, a PLC control box 900, the concentrate overflow launder 300 is arranged at the periphery of the upper body 400, and the concentrate overflow launder 300 is provided with a concentrate discharge hole 310. And a tailing discharging pipe 600 is connected to the tailing discharging opening. The PLC control box 900 is respectively connected with the electric actuator 700 and the pressure sensor 800 in a control manner.

In addition, the coarse slime sorter further comprises a support 200 arranged between the mixing buffer box 100 and the lower machine body 500 and used for supporting the mixing buffer box 100, the top of the support 200 is fixedly connected with the bottom of the mixing buffer box 100, the support 200 is positioned above the concentrate overflow chute 300 and used for supporting the mixing buffer box 100 and enabling an overflow space to be reserved between the mixing buffer box 100 and the concentrate overflow chute 300, and therefore the sorted concentrate enters the concentrate overflow chute 300 through the overflow space and is discharged out of the equipment through a concentrate discharge hole.

It is specific, the inside last baffle 120 and the lower baffle 130 that is provided with parallel from top to bottom of compounding baffle-box 100, it is located the below of ore pulp pan feeding mouth 110 to go up baffle 120, it is located baffle 120 center department to go up to be provided with first through-hole and first through-hole on the baffle 120, be provided with the second through-hole just down on the baffle 130 the second through-hole sets up a plurality ofly, and each second through-hole evenly distributed has changed the fluid direction of pan feeding ore pulp on baffle 130 down through the ore pulp pan feeding mouth 110 entering compounding baffle-box 100 of compounding baffle-box 100 when the pan feeding ore pulp, through last baffle 120 and last baffle 120 on a plurality of second through-holes that set up, down baffle 130 and lower baffle 130, make pan feeding ore pulp homogeneous mixing, realized the preliminary mixing processing of pan feeding ore pulp, improved the homogeneity of pan feeding ore pulp.

Specifically, a plurality of inclined flow stabilizing plates 410 which are parallel to each other from left to right are arranged in the upper body 400, the horizontal installation angle of the inclined flow stabilizing plates 410 is alpha, preferably, the alpha is 60-70 degrees, and the arrangement of the structure is beneficial to the inclined flow of fluid, so that the sorting effect is improved.

Preferably, the upper body 400 is an inclined tetragonal body, and left and right side plates of the upper body 400 are parallel to the inclined stabilizer plate 410.

Specifically, a funnel-shaped flow stabilizer 520 having a central axis of the lower body 500 as a symmetry axis is disposed at the inner bottom of the lower body 500, and the funnel-shaped flow stabilizer 520 is welded in the lower body 500. The included angle between the funnel-shaped flow stabilizing plate 520 and the horizontal plane is delta, preferably, the delta is 15-20 degrees, a plurality of water spraying holes are uniformly formed in the funnel-shaped flow stabilizing plate 520, plugs are arranged in the water spraying holes, a water through hole with the diameter of 5mm is formed in the center of each plug, and preferably, the plug is made of nylon. Parallel cavity annular grooves are formed in the funnel-shaped flow stabilizing plate 520, so that ascending water flow is uniformly distributed, and the sorting effect is improved. The tailing discharge opening is positioned at the center of the bottom of the funnel-shaped flow stabilizing plate 520.

Specifically, the bottom of the lower body 500 is uniformly provided with a plurality of water inlet pipes 530 corresponding to the funnel-shaped flow stabilizer 520.

Preferably, the number of the water inlet pipes 530 is 4, and the 4 water inlet pipes 530 are uniformly arranged at the bottom of the lower body 500 corresponding to the funnel-shaped flow stabilizer 520, so that the ascending water is uniformly distributed on the whole cross section of the lower body 500.

Preferably, the lower body 500 is a square body.

Specifically, a flow stabilizing net 510 is horizontally arranged inside the lower body 500, and the flow stabilizing net 510 is located above the funnel-shaped flow stabilizing plate 520.

Preferably, the flow stabilizing net 510 is a stainless steel net, the aperture ratio of which is greater than 80%, and the flow stabilizing net mainly has the function of stabilizing the rising water flow with a certain pressure, and simultaneously has the function of stabilizing the material falling by the rotational flow with a certain kinetic energy, so that the separation effect is improved.

Specifically, the lower extreme of charge-in well 420 sets up a first back taper section of thick bamboo 421, the main effect of a first back taper section of thick bamboo 421 is the dispersion ore pulp, makes pan feeding ore pulp evenly distributed on organism 500's cross-section down, with rising rivers and ore pulp collision against the current, improves the separation effect.

Specifically, electric actuator 700 is connected and sets up perpendicularly in the inside executive rod of intercommunication space including installing in the executor at compounding baffle-box 100 top, with the executor, the top of executive rod and the bottom threaded connection of executor, the periphery of executive rod has cup jointed protection sleeve 710, and protection sleeve 710 has protected electric actuator 700's executive rod, prevents that the executive rod from being washed away by the ore pulp of high-pressure pan feeding, prolongs the life of executive rod. The lower end of the protection sleeve 710 is provided with a second inverted cone-shaped cylinder 711 corresponding to the first inverted cone-shaped cylinder 421, and the end faces of the first inverted cone-shaped cylinder 421 and the second inverted cone-shaped cylinder are both located on the bottom plane of the upper body 400. The second inverted cone 711 is mainly used for dispersing ore pulp, so that the fed ore pulp is uniformly distributed on the cross section of the lower machine body 500 and collides with the ascending water flow and the ore pulp in a counter-flow manner, and the separation effect is improved. The tail end of the execution rod is provided with a wear-resistant cone, and the wear-resistant cone is in butt joint with the tailing discharge port.

Specifically, the cone angle of the first inverted cone cylinder 421 is γ, preferably, γ is 80 ° to 100 °, the cone angle of the second inverted cone cylinder 711 is β, and β is 80 ° to 100 °.

Preferably, the taper angle γ of the first reverse tapered cylinder is equal to the taper angle β of the second reverse tapered cylinder.

Specifically, electric actuator 700 still include uide bushing gland, uide bushing, support, wear-resisting valve body, fixed plate, backup pad, base, the uide bushing is installed at support upper end downthehole and is fastened through uide bushing gland bolt, the lower extreme and the backup pad of support pass through bolted connection, pedestal mounting is connected with the backup pad at backup pad lower extreme downthehole and through the bolt, wear-resisting valve body is installed at base upper end downthehole and is fastened through the fixed plate bolt, electric actuator 700's effect is by pressure sensor 800 according to the pressure of setting for, transmission signal to PLC control box 900, and PLC control box 900 control electric actuator 700's wear-resisting cone rises or descends, realizes the dynamic row material of tailing.

Specifically, be provided with pressure sensor 800 in going up organism 400 and organism 500's the intercommunication space down, pressure sensor 800's periphery has cup jointed the protective tube 810 that is used for protecting pressure sensor 800's connecting rod not to receive external ore pulp interference, protective tube 810's effect is the connecting rod of protection pressure sensor 800, prevents to be washed away by the ore pulp that rises, prolongs pressure sensor 800's life, and pressure sensor 800's connecting rod does not receive the interference of external ore pulp in addition, improves its transmission signal's stability, improve equipment's flotation performance. The top of the pressure sensor 800 is fixedly installed on the bracket 200, and the end of the pressure sensor 800 is located inside the lower body 500 and above the current stabilizing net 510.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, i.e. the present invention is intended to cover all equivalent variations and modifications within the scope of the present invention.

Claims (10)

1. The utility model provides a coarse coal slime sorter, its characterized in that includes the compounding baffle-box that top-down communicates in proper order, goes up the machine body and organism down, sets up electric actuator in the intercommunication space, the last lag cylinder that is used for protecting electric actuator that has cup jointed of electric actuator, the upper portion of compounding baffle-box is provided with the ore pulp pan feeding mouth, the bottom of compounding baffle-box sets up the ore pulp discharge gate, and butt joint ore pulp discharge gate is provided with the pan feeding well that extends to the inside of organism, the lag cylinder is located the pan feeding well, the bottom that corresponds electric actuator in organism bottom down sets up the tailing bin outlet, coarse coal slime sorter is still including setting up the concentrate overflow launder that the body that is used for collecting to go up the machine body and spills over the concentrate in the.

2. The coarse coal slime separator according to claim 1, wherein an upper partition plate and a lower partition plate which are parallel to each other are arranged inside the mixing buffer tank, the upper partition plate is located below the ore pulp feeding port, a first through hole is formed in the upper partition plate and located in the center of the upper partition plate, a plurality of second through holes are formed in the lower partition plate, and the second through holes are evenly distributed in the lower partition plate.

3. The coarse coal slime separator according to claim 1, wherein the electric actuator comprises an actuator arranged at the top of the mixing buffer box and an actuating rod connected with the actuator and vertically arranged in the communicated space, a protective sleeve is sleeved on the periphery of the actuating rod, a wear-resistant cone is arranged at the lower end of the actuating rod, and the wear-resistant cone is in butt joint with the tailing discharge port.

4. The coarse coal slime separator according to claim 1, wherein a first inverted conical cylinder is arranged at the lower end of the feeding well, a second inverted conical cylinder is arranged at the lower end of the protecting sleeve corresponding to the first inverted conical cylinder, and the end faces of the first inverted conical cylinder and the second inverted conical cylinder are both located on the bottom plane of the upper machine body.

5. The coarse coal slime separator as recited in claim 4, wherein the cone angle of the first inverted cone cylinder is 80 ° -100 °, and the cone angle of the second inverted cone cylinder is 80 ° -100 °.

6. The coarse coal slime separator according to claim 1, wherein a funnel-shaped flow stabilizing plate which takes the central axis of the lower body as the axis of symmetry is arranged at the inner bottom of the lower body, the included angle between the funnel-shaped flow stabilizing plate and the horizontal plane is 15-20 degrees, a plurality of water spray holes are uniformly formed in the funnel-shaped flow stabilizing plate, a plurality of water inlet pipes are uniformly arranged at the bottom of the lower body corresponding to the funnel-shaped flow stabilizing plate, and the tailing discharge port is positioned at the center of the bottom of the funnel-shaped flow stabilizing plate.

7. The coarse coal slime separator as recited in claim 1, further comprising a support disposed between the mixing buffer tank and the lower body for supporting the mixing buffer tank, wherein the top of the support is fixedly connected to the bottom of the mixing buffer tank, and the support is located above the concentrate overflow trough.

8. The coarse coal slime separator according to claim 1, wherein a plurality of inclined flow stabilizing plates are arranged in parallel left and right in the upper machine body, and the horizontal installation angle of the inclined flow stabilizing plates is 60-70 degrees.

9. The coarse coal slime separator according to claim 6, wherein a flow stabilizing net is horizontally arranged inside the lower machine body and is positioned above the funnel-shaped flow stabilizing plate.

10. The coarse coal slime separator according to claim 1, wherein a pressure sensor is arranged in a communicating space between the upper body and the lower body, and a protective pipe for protecting a connecting rod of the pressure sensor from being interfered by external ore pulp is sleeved on the periphery of the pressure sensor.

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