CN115301382A

CN115301382A - Barite powder preparation and processing system and process

Info

Publication number: CN115301382A
Application number: CN202211072988.3A
Authority: CN
Inventors: 狐盼盼
Original assignee: Individual
Current assignee: Xinjiang Jiangrun Oilfield Drilling And Production Auxiliary Co ltd
Priority date: 2022-09-02
Filing date: 2022-09-02
Publication date: 2022-11-08
Anticipated expiration: 2042-09-02
Also published as: CN115301382B

Abstract

The invention relates to the field of ore milling and powder making, in particular to a barite powder preparation and processing system and a process, wherein the barite powder preparation and processing system comprises a material receiving box, supporting legs are fixedly arranged at four corners of the lower end of the material receiving box, a driving shaft is rotatably connected to the center of the lower end of the material receiving box, supporting columns are fixedly connected to the four corners in the material receiving box, a screening device for screening materials and a grinding device for grinding the materials are sequentially erected on the supporting columns from bottom to top, and a crushing device for crushing the materials is erected at the upper end of the grinding device, so that crushing and milling processes in a barite powder preparation process can be combined, and qualified barite with a refining degree which is not milled can be recovered and milled again.

Description

Barite powder preparation and processing system and process

Technical Field

The invention relates to the field of ore milling and pulverizing, in particular to a system and a process for preparing and processing barite powder.

Background

The barite is a non-metal mineral product with barium sulfate as a main component, barite powder can be used as a weighting agent of drilling mud to prevent a blowout event, the barite powder can be used as a raw material to prepare high-quality white pigment lithopone, and the barite powder can be used in the filler industry, and in the paint industry, the barite powder filler can increase the thickness, strength and durability of a paint film.

However, in the above applications, the barite needs to be refined into powder to be well applied, in the process of refining the barite into powder, the barite needs to be crushed, milled and winnowed, the existing device usually separates the crushing process from the milling process, so that a transportation process and a multiple filling process are generated in the middle, thereby affecting the working efficiency, meanwhile, it is difficult to mill all the barite powder to an acceptable refinement degree in the milling process, and the existing device does not have the capability of automatically recovering the barite which is not milled to the acceptable refinement degree and then milling the barite again.

Therefore, it is necessary to provide a system and a process for preparing barite powder to solve the above technical problems.

Disclosure of Invention

In order to solve the technical problems, the invention provides a barite powder preparation processing system which can combine the crushing and grinding processes in the barite powder preparation process and can recycle and grind barite with qualified non-ground refinement degree.

The invention provides a barite powder preparation and processing system which comprises a material receiving box, wherein supporting legs are fixedly arranged at four corners of the lower end of the material receiving box, a driving shaft is rotatably connected to the center of the lower end of the material receiving box, supporting columns are fixedly connected to the directions of the four corners in the material receiving box, a screening device for screening materials and a grinding device for grinding the materials are sequentially erected on the supporting columns from bottom to top, a crushing device for grinding the materials is erected at the upper end of the grinding device, the driving shaft penetrates through the screening device and the grinding device to be connected with the crushing device, the grinding device receives the materials falling from the crushing device and further grinds the materials, and finally sends the ground materials to the screening device from the middle position, the screening device comprises a screening hopper, a lower pressing column, a driving disc and a reciprocating spring, the screening hopper is connected with the supporting column in a sliding manner along the vertical direction, the upper end and the lower end of the supporting column at the joint of the supporting column and the screening hopper are both provided with circular bulges, the lower end of the screening hopper is contacted with the circular bulges at the lower end, the supporting column is sleeved with a reciprocating spring, the two ends of the reciprocating spring are fixedly connected with the circular bulges and the screening hopper, the screening hopper is a conical shell, the outer side wall of the screening hopper is fixedly provided with a plurality of annular material blocking rods with triangular sections, the side wall of the screening hopper is uniformly provided with through holes, the middle position of the lower end of the screening hopper is fixedly connected with a lower pressing column, a driving disc corresponding to the lower pressing column is fixedly connected to a driving shaft, a plurality of lower ejecting blocks with arc surfaces at the upper ends and one side are uniformly distributed on the driving disc in the circumferential direction, and the lower end of the lower pressing column is fixedly connected with upper ejecting blocks corresponding to the lower ejecting blocks, and one side of the lower end of the upper ejector block is processed with an arc surface corresponding to the arc surface on the upper ejector block.

Preferably, the front side and the rear side of the lower end of the screen hopper are provided with collecting hoppers, the side wall of the collecting hopper close to the center of the screen hopper is arc-surface-shaped and is positioned at the lower end right above the edge of the screen hopper, the side wall of the collecting hopper far away from the center of the screen hopper is straight-surface-shaped and is positioned at the outer side of the screen hopper, the collecting hopper is in a shrinkage shape from top to bottom, the lower end of the collecting hopper is provided with a material return groove, the collecting hopper is provided with a material return device, the material return device comprises a fixed plate, belt wheels, a material return belt and a restraint wheel, the fixed plate is in an inverted L shape, the fixed plate is provided with two belt wheels and is fixed on the side wall of the collecting hopper far away from the center of the screen hopper, the lower end of the fixed plate extends into the material return groove, the two belt wheels are respectively connected with the two sides of the horizontal section at the upper end between the two fixed plates, the position of two band pulleys below of fixed plate upper end is rotated and is connected with the restraint wheel, the restraint wheel with the lateral surface of feed back belt is laminated mutually, the outside evenly distributed of feed back belt has the scraper bowl, and with the band pulley becomes the shape of falling L with the whole restraint of feed back belt, fixedly connected with feed back fill on the fixed plate, the feed back fill is located the lower extreme of the band pulley of the one end at fixed plate upper end horizontal segment away from sieve hopper center, the lower extreme fixedly connected with feed back pipe of feed back fill, the feed back pipe stretches into grind the upper end of material device, it is connected with a band pulley to rotate between the lower extreme on two fixed plates, this band pulley with the feed back belt contacts, the band pulley passes drive gear of one of them fixed plate fixed connection, be provided with the drive arrangement who drives feed back device on the sieve hopper.

Preferably, drive arrangement includes drive plate, drive rack, reset spring and release lever, drive plate fixed connection be in the lower extreme of sieve hopper, the drive plate is close to the slide bar that the end of the upper and lower both ends fixedly connected with of one side of fixed plate is protruding form, sliding connection has the drive rack on the slide bar, the cover is equipped with reset spring on the slide bar, reset spring's both ends respectively fixed connection be in drive rack with on the arch of slide bar, along vertical direction sliding connection have the release lever in the drive plate, the separation block of lower extreme fixedly connected with lower extreme one side processing for the inclined plane of drive rack, the lower extreme fixedly connected with of release lever and the corresponding ejecting block of separation block, the drive rack with drive gear is corresponding, on the fixed plate at drive arrangement's upper and lower both ends fixedly connected with the corresponding ejecting block in advance of release lever, be provided with the depression bar from top to bottom with drive gear fixed connection's band pulley, depression bar fixed connection is on the fixed plate to produce the pressure towards the band pulley to the feed back belt.

Preferably, the crushed aggregates device includes crushed aggregates cover and crushed aggregates roller, crushed aggregates cover mount is established grind the upper end of material device, the crushed aggregates cover is the casing of the round platform shape of handstand, crushed aggregates roller rotating mount establishes the intermediate position of crushed aggregates cover, the drive shaft passes sieve hopper with grind the material device with crushed aggregates roller fixed connection, just the upper end of crushed aggregates roller is the round platform form, it has spiral helicine strip arch to process around the side of crushed aggregates roller, circumference distributes on the inside wall of crushed aggregates cover has the crushing roller of straight tube-shape, the crushing roller with crushed aggregates cover rotates to be connected, evenly distributed has fixed connection's lug on the lateral wall of crushing roller.

Preferably, grind the material device including grinding dish, mount pad, grinding roller, roof pressure spring and dead lever, grind the dish fixed mounting in the upper end of support column, the intermediate position of grinding the dish is for lining up the form, dead lever fixed connection is in the drive shaft, just the dead lever centers on drive shaft circumference distributes and has a plurality ofly, and the length of every fixed lever is all inequality, the mount pad along vertical direction through the slip post with dead lever sliding connection, the lower extreme of mount pad is rotated and is connected with the centre on grind material dish center pin pivoted grinding roller, fixedly connected with is the receipts flitch of slope form on the mount pad.

Preferably, the lower extreme fixedly connected with cushion collar of crushed aggregates cover, the cushion collar includes endotheca, overcoat and buffer board, overcoat fixed connection be in the lower extreme of crushed aggregates cover, the endotheca is established by the cover the inside of overcoat, just the endotheca is located the lower extreme of crushed aggregates roller, the endotheca with pass through between the overcoat buffer board fixed connection, the buffer board is the spiral slope form, a plurality of deceleration pole of fixedly connected with on the buffer board.

The invention also provides a processing technology of the barite powder, which comprises the following steps:

s1: primarily crushing barite through a crushing device;

s2: further grinding the crushed barite by a grinding device;

s3: screening out the barite which is milled to be fine enough through a screening device.

Compared with the related art, the barite powder preparation and processing system provided by the invention has the following beneficial effects:

1. according to the invention, the material grinding device is arranged at the lower end of the material crushing device, so that after the material crushing device is used for primarily crushing the barite, the crushed barite directly falls into the material grinding device for grinding, the crushing process and the grinding process of the barite are combined together, the processes of multiple transportation and filling of the barite are prevented, and the overall working efficiency is improved.

2. The barite which is not milled to the qualified refining degree is collected into the feed back tank through the collecting hopper, the drive device is utilized to drive the feed back device to enable the barite to move from the feed back tank to the upper end of the material grinding device, and finally the barite falls into the feed back hopper and enters the material grinding device along the feed back pipe, so that the barite which is not milled to the qualified refining degree can be recovered and milled again.

3. According to the invention, crushed barite can fall onto the buffer plate from a position between the inner sleeve and the outer sleeve through the crushing sleeve, and the speed reducing rod on the buffer plate can reduce the speed of the barite, so that the barite cannot bounce due to too high speed when falling onto the material grinding plate, and the barite is prevented from falling from the material grinding plate.

Drawings

Fig. 1 is a schematic view of the general structure of the present invention.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a schematic structural view of a material grinding device and a material crushing device in the invention.

Fig. 4 is a schematic structural diagram of the screening device of the present invention.

Fig. 5 is a schematic view of a part of the enlarged structure at B in fig. 4.

Fig. 6 is a schematic view of a part of an enlarged structure at C in fig. 4.

Fig. 7 is a partially enlarged schematic view of a portion D in fig. 4.

Fig. 8 is a schematic view of a part of an enlarged structure at E in fig. 4.

FIG. 9 is a schematic view of the structure of the buffer plate of the present invention.

Fig. 10 is a partial structural view of a screen panel according to the present invention.

Fig. 11 is a schematic view of the installation position of the pressing rod in the present invention.

Reference numbers in the figures: 1. a material collecting box; 11. a support leg; 12. a drive shaft; 13. a support pillar; 2. a material screening device; 21. screening the hopper; 211. a material blocking rod; 22. pressing the column downwards; 221. a top block is arranged; 23. a drive disc; 231. a lower top block; 24. a reciprocating spring; 25. a collection hopper; 251. a feed back trough; 3. a material grinding device; 31. grinding a material tray; 32. a mounting seat; 321. a sliding post; 322. a material receiving plate; 33. grinding the material roller; 34. pressing the spring; 35. fixing the rod; 4. a crushing device; 41. sheathing crushed aggregates; 42. a crushing roller; 43. a crushing roller; 5. a material returning device; 51. a fixing plate; 511. pre-jacking blocks; 512. a pressure lever; 52. a pulley; 53. a feed back belt; 531. a bucket; 54. a restraint wheel; 55. a material returning hopper; 551. a material return pipe; 56. a drive gear; 6. a drive device; 61. a drive plate; 611. a slide bar; 62. a drive rack; 621. separating the blocks; 63. a return spring; 64. a separating lever; 641. ejecting a block; 7. a buffer sleeve; 71. an inner sleeve; 72. a jacket; 73. a buffer plate; 731. a speed reducing lever.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Specific implementations of the present invention are described in detail below with reference to specific embodiments.

As shown in fig. 1, the invention provides a barite powder preparing and processing system, which comprises a material receiving box 1, wherein four corners of the lower end of the material receiving box 1 are fixedly provided with supporting legs 11, and the center of the lower end of the material receiving box 1 is rotatably connected with a driving shaft 12.

As shown in fig. 1, 4, 8 and 10, a supporting column 13 is fixedly connected to four corners in the material receiving box 1, a screening device 2 for screening materials and a grinding device 3 for grinding the materials are sequentially erected on the supporting column 13 from bottom to top, a crushing device 4 for crushing the materials is erected at an upper end of the grinding device 3, the driving shaft 12 passes through the screening device 2 and the grinding device 3 to be connected with the crushing device 4, the grinding device 3 receives the materials falling from the crushing device 4 and further grinds the materials, and finally sends the ground materials to the screening device 2 from an intermediate position, the screening device 2 includes a screening hopper 21, a lower pressing column 22, a driving disc 23 and a reciprocating spring 24, the screening hopper 21 is slidably connected to the supporting column 13 in a vertical direction, the upper end and the lower end of the supporting column 13, which are located at the joint of the supporting column 13 and the screening hopper 21, are provided with circular protrusions, the lower end of the screening hopper 21 contacts with the circular protrusion located at the lower end, the supporting column 13 is sleeved with a reciprocating spring 24, the two ends of the reciprocating spring 24 are fixedly connected to the circular protrusion and the screening hopper 21, the screening hopper 21 is a conical shell, the outer side wall of the screening hopper 21 is fixedly provided with a plurality of annular material blocking rods 211 with triangular cross sections, the side wall of the screening hopper 21 is uniformly distributed with through holes, the middle position of the lower end of the screening hopper 21 is fixedly connected with a lower pressing column 22, the driving shaft 12 is fixedly connected with a driving disc 23 corresponding to the lower pressing column 22, a plurality of lower ejecting blocks 231 with arc surfaces on one side of the upper end are uniformly distributed on the driving disc 23 in the circumferential direction, the lower end of the lower pressing column 22 is fixedly connected with an upper ejecting block 221 corresponding to the lower ejecting block 231, and an arc surface corresponding to the arc surface on the upper top block 221 is processed at one side of the lower end of the upper top block 221.

It should be noted that, in the process of milling and smashing barite, at first put into crushed aggregates device 4 with barite, crushed aggregates device 4 carries out preliminary smashing to barite, later by the preliminary crushing barite enter into grinding device 3, grind kibbling barite through grinding device 3, barite after the completion of milling falls into sieve hopper 21 of sieve device 2, in the process of sieve device 2 screening the barite after the completion of milling, drive shaft 12 drives the rotation of drive shaft 12 like the motor through external driving source, drive shaft 12 drives driving-disc 23 and rotates, lower kicking block 231 on driving-disc 23 can be to the continuous roof pressure of last kicking block 221 on lower plunger 22, when lower kicking block 231 contacts with the arc surface of last kicking block 221, lower kicking block 231 can exert force to last kicking block 221, make lower plunger 22 drive sieve 21 upward movement, when upper kicking block 221 contacts lower kicking block 231, under the roof effect of spring 24, sieve hopper 21 can move downwards, when the effect of sieve hopper 21 and sieve hopper 21 that the sieve takes place the protruding screen hopper that the sieve hopper 21 that sieve takes place to the sieve of sieve hopper that sieves the reciprocating sieve takes place for a long time and the settlement of the sieve hopper 21 that the settlement takes place down, thereby the settlement of the reciprocal top of barite that the sieve hopper 21 that the settlement takes place more.

As shown in fig. 4, 5 and 6, the front and rear sides of the lower end of the screen hopper 21 are provided with the collecting hoppers 25, the side walls of the collecting hoppers 25 close to the center of the screen hopper 21 are arc-surface-shaped and located at the lower end of the edge of the screen hopper 21, the side walls of the collecting hoppers 25 far from the center of the screen hopper 21 are straight-surface-shaped and located at the outer side of the screen hopper 21, the collecting hoppers 25 are contracted from top to bottom, the lower end of the collecting hoppers 25 are provided with the material returning grooves 251, the material returning devices 5 comprise fixing plates 51, belt wheels 52, material returning belts 53 and restraining wheels 54, the fixing plates 51 are in inverted L shapes, the fixing plates 51 are provided with two belt wheels and fixed on the side walls of the collecting hoppers 25 far from the center of the screen hopper 21, the lower ends of the fixing plates 51 extend into the material returning grooves 251, the two belt wheels 52 are respectively connected to the two sides of the horizontal sections at the lower ends and the upper ends of the two fixing plates 51, the belt wheels 52 are connected through a return belt 53, a restraining wheel 54 is rotatably connected at a position below the two belt wheels 52 at the upper end of the fixing plate 51, the restraining wheel 54 is attached to the outer side surface of the return belt 53, buckets 531 are uniformly distributed at the outer side of the return belt 53, the return belt 53 is integrally restrained into an inverted L shape with the belt wheels 52, a return hopper 55 is fixedly connected to the fixing plate 51, the return hopper 55 is positioned at the lower end of the belt wheel 52 at one end of the horizontal section of the upper end of the fixing plate 51 far away from the center of the screen hopper 21, a return pipe 551 is fixedly connected to the lower end of the return hopper 55, the return pipe 551 extends into the upper end of the material grinding device 3, a belt wheel 52 is rotatably connected between the upper end and the lower end of the two fixing plates 51, the belt wheel 52 is in contact with the return belt 53, and the belt wheel 52 passes through one of the fixing plates 51 and is fixedly connected with a driving gear 56, and a driving device 6 for driving the material returning device 5 is arranged on the sieve hopper 21.

It should be noted that the barite that is not milled to an acceptable refinement degree is transferred into the collecting hopper 25 from the edge of the screen hopper 21, and finally enters the material returning groove 251 at the lower end of the collecting hopper 25, the material returning belt 53 is driven by the driving device 6 to move unidirectionally in the process that the screen hopper 21 moves up and down, the barite that is not milled to an acceptable refinement degree is moved from the material returning groove 251 to the upper end of the material grinding device 3 by the bucket 531 on the material returning belt 53, and finally falls into the material returning hopper 55, enters the material grinding device 3 along the material returning pipe 551, and the barite that is not milled to an acceptable refinement degree is milled again by the material grinding device 3.

As shown in fig. 4, 6, 7 and 11, the driving device 6 includes a driving plate 61, a driving rack 62, a return spring 63 and a separating rod 64, the driving plate 61 is fixedly connected to the lower end of the sieving hopper 21, the upper and lower ends of one side of the driving plate 61 close to the fixing plate 51 are fixedly connected to a sliding rod 611 with a convex end, the sliding rod 611 is slidably connected to the driving rack 62, the sliding rod 611 is sleeved with the return spring 63, two ends of the return spring 63 are respectively and fixedly connected to the driving rack 62 and the protrusion of the sliding rod 611, the separating rod 64 is slidably connected to the driving plate 61 in the vertical direction, the separating block 621 with an inclined surface is fixedly connected to the lower end of the driving rack 62, the ejecting block 641 corresponding to the separating block 621 is fixedly connected to the lower end of the separating rod 64, the driving rack 62 corresponds to the driving gear 56, the pre-ejecting block 511 corresponding to the separating rod 64 is fixedly connected to the upper and lower ends of the driving device 6 on the fixing plate 51, the pressing rods 512 are fixedly connected to the upper and lower ends of the pulleys 52 fixedly connected to the driving gear 56, and the pressing rods 512 are fixedly connected to the fixing plate 51, and generate pressure on the belt 53.

It should be noted that, when the sieving hopper 21 drives the driving device 6 to move downward, the driving rack 62 is spaced from the driving gear 56, the driving device 6 does not drive the driving gear 56 to rotate, when the driving device 6 moves to the lowermost end, the separating rod 64 contacts with the lower pre-ejecting block 511, so that the ejecting block 641 on the separating rod 64 generates a pressing effect on the separating block 621, so that the separating block 621 drives the driving rack 62 to move in a direction close to the driving gear 56, and teeth on the driving rack 62 correspond to teeth on the driving gear 56, so that when the driving device 6 moves upward, the driving rack 62 drives the driving gear 56 to rotate, the driving gear 56 drives the pulley 52 fixedly connected with the driving gear 56 to rotate, the pulley 52 drives the return belt 53, and the return belt 53 keeps good contact with the pulley 52 under the action of the pressing rod 512, so that the return belt 53 moves upward close to the side of the sieving device 2, and when the driving device 6 moves to the uppermost end, the separating rod 64 contacts with the upper pre-ejecting block 641, so that the ejecting block 62 moves away from the driving gear 62 and the driving gear 63 moves away from the return spring 511.

As shown in fig. 3, crushed aggregates device 4 includes crushed aggregates cover 41 and crushed aggregates roller 42, crushed aggregates cover 41 is fixed establishment grind the upper end of device 3, crushed aggregates cover 41 is the casing of the round platform shape of handstand, crushed aggregates roller 42 rotates to erect the intermediate position of crushed aggregates cover 41, drive shaft 12 passes sieve hopper 21 and material grinding device 3 with crushed aggregates roller 42 fixed connection, just the upper end of crushed aggregates roller 42 is the round platform form, it has spiral helicine strip arch to process around crushed aggregates roller 42's the side, circumference distributes on crushed aggregates cover 41's the inside wall has the crushing roller 43 of straight tube-shape, crushing roller 43 with crushed aggregates cover 41 rotates to be connected, evenly distributed has fixed connection's lug on crushing roller 43's the lateral wall.

It should be noted that, in the process of crushing barite by the crushing device 4, barite is added between the crushed aggregates sleeve 41 and the crushed aggregates sleeve 42, the driving shaft 12 can drive the crushed aggregates roller 42 to rotate, the upper end of the crushed aggregates roller 42 is in a truncated cone shape, which is beneficial for barite to enter between the crushed aggregates roller 42 and the crushed aggregates sleeve 41, the crushed aggregates sleeve 41 is in an inverted truncated cone shape, so that the inner side wall of the crushed aggregates sleeve 41 is gradually close to the crushed aggregates roller 42 from top to bottom, and thus barite is gradually pressed by the crushed aggregates roller 42 and the crushed aggregates sleeve 41 in the falling process, so that barite is crushed, a spiral strip-shaped bulge is processed around the side edge of the crushed aggregates roller 42 to generate downward pressure on the barite, which is beneficial for falling of barite between the crushed aggregates roller 42 and the crushed aggregates sleeve 41, further beneficial for crushing barite, and the crushing roller 43 can generate a rolling effect on the barite, and a bump on the crushing roller 43 can increase the local pressing force of barite, thereby further increasing the crushing efficiency and the crushing effect on barite.

As shown in fig. 3, the material grinding device 3 includes material grinding disc 31, mount pad 32, material grinding roller 33, roof pressure spring 34 and dead lever 35, material grinding disc 31 fixed mounting be in the upper end of support column 13, the intermediate position of material grinding disc 31 is for lining up the form, dead lever 35 fixed connection be in on the drive shaft 12, just dead lever 35 centers on drive shaft 12 circumference distributes and has a plurality ofly, and the length of every dead lever 35 is all inequality, mount pad 32 along vertical direction pass through sliding column 321 with dead lever 35 sliding connection, the lower extreme of mount pad 32 is rotated and is connected with and centers on material grinding disc 31 center pin pivoted material grinding roller 33, fixedly connected with is the material receiving plate 322 of slope form on the mount pad 32.

It should be noted that, when the crushed barite falls into the material grinding disc 31, the driving shaft 12 drives the mounting seat 32 to rotate around the driving shaft 12 through the fixing rod 35, the material grinding rollers 33 at the lower end of the mounting seat 32 grind the barite, and the material receiving plate 322 moves the barite to be ground to the middle position of the material grinding disc 31, meanwhile, because the fixing rod 35 is different in length, the material grinding rollers 33 are located at different lengths from the middle of the material grinding disc 31, so that the barite is ground for multiple times before the process of falling from the middle of the material grinding disc 31, the grinding effect is increased, and meanwhile, because the mounting seat 32 and the fixing rod 35 are in the elastic connection state through the top pressure spring 34, the material grinding rollers 33 are not blocked in the grinding process of the barite.

As shown in fig. 3 and 9, the buffer sleeve 7 is fixedly connected to the lower end of the material crushing sleeve 41, the buffer sleeve 7 includes an inner sleeve 71, an outer sleeve 72 and a buffer plate 73, the outer sleeve 72 is fixedly connected to the lower end of the material crushing sleeve 41, the inner sleeve 71 is sleeved inside the outer sleeve 72, the inner sleeve 71 is located at the lower end of the material crushing roller 42, the inner sleeve 71 is fixedly connected to the outer sleeve 72 through the buffer plate 73, the buffer plate 73 is spirally inclined, and the buffer plate 73 is fixedly connected to a plurality of speed reducing rods 731.

It should be noted that, if the crushed barite directly falls into the milling device 3 from the crushing device 4, the barite is easy to bounce and fall from the milling tray 31, and the crushed barite can fall onto the buffer plate 73 from between the inner sleeve 71 and the outer sleeve 72 through the crushing sleeve 41, and the speed reduction rod 731 on the buffer plate 73 can reduce the speed of the barite so that the speed of the barite does not too fast cause the bounce when the barite falls into the milling tray 31.

The invention also provides a processing technology of the barite powder, which comprises the following steps;

s1: carry out preliminary smashing with the barite through crushed aggregates device 4, add the barite between crushed aggregates cover 41 and crushed aggregates roller 42, drive shaft 12 can drive crushed aggregates roller 42 and rotate, thereby make the barite receive the extrusion that crushed aggregates roller 42 and crushed aggregates cover 41 progressively and strengthen at the in-process of whereabouts, thereby make the barite obtain smashing, crushing roller 43 then can produce the rolled effect to the barite, and the lug on crushing roller 43 can increase the local extrusion force to the barite, thereby further crushing efficiency and the crushing effect of increase barite.

S2: carry out further milling through the barite after grinding device 3 will smash, the stone roller 33 of mount pad 32 lower extreme can grind the barite, and material collecting plate 322 then can receive the barite that mills and remove to the intermediate position department of stone roller 31, simultaneously because such a plurality of stone rollers 33 of length of dead lever 35 do not coincide just are in the position department apart from the different length in centre of stone roller 31, the process that the barite fell down from the centre of stone roller 31 will receive many times before like this and mill, the effect of milling has been increased.

S3: the barite which is milled to be sufficiently refined is screened out by the screening device 2 and not milled to be qualified refinement degree, and is transferred into the collecting hopper 25 from the edge of the screening hopper 21, and finally enters the material returning groove 251 at the lower end of the collecting hopper 25, and is conveyed into the material grinding device 3 again by the material returning device 5 for grinding again.

The circuits and controls involved in the present invention are all the prior art, and are not described herein in detail.

The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes performed by the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.

Claims

1. The barite powder preparing and processing system comprises a material receiving box (1), wherein supporting legs (11) are fixedly mounted at four corners of the lower end of the material receiving box (1), and a driving shaft (12) is rotatably connected to the center of the lower end of the material receiving box (1);

its characterized in that, four corners direction fixedly connected with support column (13) in receipts workbin (1), support column (13) have erect in proper order by lower up and have been used for screening sieve material device (2) of material and be used for grinding the material grinding device (3) of material, the upper end of grinding device (3) is erect and is used for smashing crushed aggregates crushing device (4), drive shaft (12) are passed sieve material device (2) with grinding device (3) are connected with crushed aggregates crushing device (4), material that falls from crushed aggregates crushing device (4) is accepted to grinding device (3) to further mill the material, and finally send the material that mills well into sieve material device (2) from the intermediate position on, sieve material device (2) are including sieve hopper (21), push down post (22), driving-disk (23) and reciprocal spring (24), sieve hopper (21) with support column (13) along vertical direction sliding connection, support column (13) are located its and sieve hopper (21) connection's department upper and lower extreme is all be provided with the protruding screen hopper (21) and two protruding circular protruding upper and lower extreme that sieve hopper (21) contacted are equipped with the circular protruding casing (24), sieve hopper (21) and reciprocal spring (24) are equipped with the cover and are equipped with the protruding upper and are equipped with the circular screen hopper (21) and the protruding casing (21) that sieve hopper (24), the fixed annular material bar (211) that is provided with the annular that the multichannel cross-section becomes triangle-shaped on the lateral wall of sieve hopper (21), evenly distributed has the through-hole on the lateral wall of sieve hopper (21), pillar (22) are down pressed to intermediate position fixedly connected with of sieve hopper (21) lower extreme, fixedly connected with and the corresponding driving-disc (23) of pillar (22) down on drive shaft (12), a plurality of upper end one sides of circumference evenly distributed are crown block (231) down of arc surface on driving-disc (23), the lower extreme fixedly connected with of pillar (22) down with crown block (231) corresponding last crown block (221) down, just the lower extreme one side processing of going up crown block (221) has the cambered surface corresponding with the cambered surface on last crown block (221).

2. The barite powder preparation processing system of claim 1, wherein the front and rear sides of the lower end of the screen hopper (21) are provided with collecting hoppers (25), the side wall of each collecting hopper (25) close to the center of the screen hopper (21) is arc-shaped and is located at the lower end right above the edge of the screen hopper (21), the side wall of each collecting hopper (25) far away from the center of the screen hopper (21) is straight and is located at the outer side of the screen hopper (21), each collecting hopper (25) is contracted from top to bottom, the lower end of each collecting hopper (25) is provided with a material return groove (251), each collecting hopper (25) is provided with a material return device (5), each material return device (5) comprises a fixing plate (51), a belt pulley (52), a material return belt (53) and a restraining pulley (54), each fixing plate (51) is in an inverted L shape, the fixing plates (51) are provided with two belt pulleys (52) fixed on the side wall of each collecting hopper (25) far away from the center of the screen hopper (21), the lower ends of the fixing plates (51) extend into the material return grooves (52), the two belt pulleys (52) are connected with the upper ends of the two belt pulleys (52), and the two belt pulleys (52) at two ends (52) connected with the two horizontal sections (52) connected at the upper ends of the two belt pulleys (52), the restraint wheel (54) is attached to the outer side face of the feed back belt (53), buckets (531) are uniformly distributed on the outer side of the feed back belt (53) and integrally restrain the feed back belt (53) into an inverted L shape together with the belt wheel (52), a feed back hopper (55) is fixedly connected to the fixing plate (51), the feed back hopper (55) is located at the lower end of the belt wheel (52) at one end, far away from the center of the screen hopper (21), of the horizontal section of the upper end of the fixing plate (51), a feed back pipe (551) is fixedly connected to the lower end of the feed back hopper (55), the feed back pipe (551) extends into the upper end of the material grinding device (3), a belt wheel (52) is rotatably connected between the upper end and the lower end of the two fixing plates (51), the belt wheel (52) is in contact with the feed back belt (53), the belt (52) penetrates through one of the fixing plates (51) and is fixedly connected with a driving gear (56), and a driving device (6) for driving the feed back device (5) is arranged on the screen hopper (21).

3. The barite powder preparing and processing system as claimed in claim 2, wherein said driving device (6) comprises a driving plate (61), a driving rack (62), a return spring (63) and a separating rod (64), said driving plate (61) is fixedly connected to the lower end of said sieving hopper (21), the upper and lower ends of one side of said driving plate (61) close to said fixing plate (51) are fixedly connected with a sliding rod (611) with a convex end, said sliding rod (611) is slidably connected with said driving rack (62), said sliding rod (611) is sleeved with said return spring (63), the two ends of said return spring (63) are respectively fixedly connected to the protrusions of said driving rack (62) and said sliding rod (611), said driving plate (61) is slidably connected with said separating rod (64) along the vertical direction, the lower end of said driving rack (62) is fixedly connected with a separating block (621) with an inclined surface, the lower end of said separating rod (64) is fixedly connected with an ejector block (641) corresponding to said separating block (621), said driving rack (62) and said driving gear (56) are connected to the upper and lower ends of said driving rod (51) and said pre-pulley (511), and said driving rod (52) are connected to said fixing plate (511), and said pre-pulley (52) respectively 512 The pressure lever (512) is fixedly connected to the fixed plate (51) and generates pressure towards the belt wheel (52) for the feed back belt (53).

4. The barite powder preparation processing system as claimed in any one of claims 1, 2 or 3, wherein said crushing device (4) comprises a crushing sleeve (41) and a crushing roller (42), said crushing sleeve (41) is fixed at the upper end of said grinding device (3), said crushing sleeve (41) is an inverted truncated cone-shaped housing, said crushing roller (42) is rotatably erected at the middle position of said crushing sleeve (41), said driving shaft (12) passes through said sieving hopper (21) and said grinding device (3) and said crushing roller (42) and is fixedly connected, and the upper end of said crushing roller (42) is truncated cone-shaped, a spiral strip-shaped protrusion is processed around the side edge of said crushing roller (42), a straight cylindrical crushing roller (43) is circumferentially distributed on the inner side wall of said crushing sleeve (41), said crushing roller (43) is rotatably connected with said crushing sleeve (41), and said protrusion is uniformly distributed on the side wall of said crushing roller (43).

5. The barite powder preparing and processing system as claimed in claim 4, wherein the material grinding device (3) comprises a material grinding disc (31), a mounting seat (32), material grinding rollers (33), a top pressure spring (34) and fixing rods (35), the material grinding disc (31) is fixedly mounted at the upper end of the supporting column (13), the middle position of the material grinding disc (31) is through, the fixing rods (35) are fixedly connected to the driving shaft (12), the fixing rods (35) are circumferentially distributed around the driving shaft (12) in a plurality, the lengths of the fixing rods (35) are different, the mounting seat (32) is slidably connected with the fixing rods (35) through sliding columns (321) in the vertical direction, the lower end of the mounting seat (32) is rotatably connected with the material grinding rollers (33) rotating around the central shaft of the material grinding disc (31), and a material receiving plate (322) which is inclined is fixedly connected to the mounting seat (32).

6. The barite powder preparation processing system of claim 5, wherein a buffer sleeve (7) is fixedly connected to the lower end of the crushing sleeve (41), the buffer sleeve (7) comprises an inner sleeve (71), an outer sleeve (72) and a buffer plate (73), the outer sleeve (72) is fixedly connected to the lower end of the crushing sleeve (41), the inner sleeve (71) is sleeved inside the outer sleeve (72), the inner sleeve (71) is located at the lower end of the crushing roller (42), the inner sleeve (71) and the outer sleeve (72) are fixedly connected through the buffer plate (73), the buffer plate (73) is spirally inclined, and a plurality of speed reduction rods (731) are fixedly connected to the buffer plate (73).

7. The barite preparation processing system of claim 1 wherein said processing system is adapted to process barite comprising the steps of;

s1: primarily crushing barite through a crushing device (4);

s2: further grinding the crushed barite through a grinding device (3);

s3: screening out the barite which is milled to be fine enough through a screening device (2).