Pulverized coal distributing device
Technical Field
The invention relates to the technical field of pulverized coal distribution, in particular to a pulverized coal distribution device.
Background
The preparation of the coke is a preparation process of the coking coal of the coke oven, and mainly comprises the process flows of storage, crushing, conveying, coal blending, crushing, water control and the like, and meanwhile, due to the fact that the preparation is a belt conveying system, each coke oven plant always brings the coke into the range of a coal preparation workshop, and the coal conveying system mainly comprises the processes of coke conveying, screening, water control, storage, delivery and the like.
Specifically, in the coal preparation process, after coal is crushed, pulverized coal is required to be distributed into a coal blending bin, and then coal is conveyed by a belt conveyor; the utility model has the beneficial effects that the high drop of the coal dropping device is utilized, an elastic vibration structure is matched, coal dust particles fall on the elastic vibration structure, and the potential energy of the coal dust particles is utilized to impact a vibration plate to enable the vibration plate to vibrate, so that coal dust uniformly falls, electric energy is saved, noise is reduced, equipment failure rate is low, and working efficiency is high on the basis of ensuring normal operation of coal dropping;
In actual coal preparation operation, large-particle coal powder remains in the coal powder after crushing, and coal powder with different particle sizes needs to be distributed in the coal preparation process, so that large particles in the coal powder need to be removed in the distribution operation, the large-particle coal powder in the coal powder is difficult to effectively remove by the conventional distribution device, filtering is needed before distribution, operation procedures are increased, and distribution efficiency is reduced.
Disclosure of Invention
Therefore, the invention aims to solve the technical problems that in the prior art, large-particle coal powder remains in the pulverized coal, and coal powder with different particle sizes need to be distributed in a coal preparation process, so that large particles in the coal powder need to be removed in a distribution operation, the large-particle coal powder in the coal powder is difficult to effectively remove by the conventional distribution device, the filtering is needed before the distribution, the operation procedure is increased, and the distribution efficiency is reduced.
The invention provides a pulverized coal distributing device which comprises a conveyor, wherein the conveyor comprises a support and a conveyor belt arranged on the support, two sides of the conveyor belt are symmetrically provided with a pair of base plates, the top ends of the base plates are provided with a blocking frame, the blocking frame comprises a pair of isolation parts and blocking parts fixedly connected to the pair of isolation parts, the pair of isolation parts are fixedly connected with the top ends of the pair of base plates respectively, a feeding cylinder is arranged right above the blocking frame, a filter screen is arranged in the blocking frame, isolation strips are fixedly connected between the filter screens and matched with the filter screen to form an annular structure, the side surfaces of the isolation strips are provided with a baffle plate, the baffle plate points to the outer side of the annular structure, the pair of baffle plates are respectively connected with the side surfaces of the pair of isolation parts in a sliding mode, a pair of support shafts are rotatably arranged between the pair of isolation parts, the support shafts close to the blocking parts are lower than the mounting heights of the support shafts far away from the blocking parts, the surfaces of the pair of support shafts are rotatably arranged, the pair of support shafts are uniformly attached to the side surfaces of the pair of the isolation shafts, the pair of isolation strips are rotatably attached to the lower side surfaces of the isolation boxes, and are uniformly located between the pair of isolation boxes and are fixedly connected between the pair of filter screens.
In one embodiment of the invention, the coal powder feeding device further comprises a blocking plate, wherein the blocking plate is arranged between the blocking part and the rotating belt, the bottom end of the blocking plate is fixedly connected with the top end of the base plate, the top end of the blocking plate is contacted with the boundary, close to the blocking part, of the bottom end of the feeding barrel, and the blocking plate can prevent coal powder discharged from the bottom end of the feeding barrel from falling from a gap between the rotating belt and the blocking part.
In one embodiment of the invention, the baffle is made of an elastic plastic, and is initially attached to the surfaces of the filter screen and the rotating belt, and the separator is made of an elastic material.
The automatic rolling machine comprises a collecting box, a rolling roller, a rolling plate, a blanking port, a rolling roller, a blanking port and a supporting shaft, wherein the rolling roller is arranged in the collecting box, a driven gear is arranged at the end part of the rolling roller, a driving gear is sleeved on the surface of the supporting shaft, the driving gear is meshed with the driven gear, a receiving notch is formed in one side of a separating part facing to a rotating belt, the driving gear and the driven gear are arranged in the receiving notch, the bottom end of the tilting plate is fixedly connected to the inner bottom wall of the collecting box, the tilting plate is positioned at the top end, the tilting plate is in contact with the annular peripheral surface of the rolling roller, the blanking port is formed in one end of the tilting plate, which is far away from the rolling roller, and the blanking port penetrates through the bottom end of the collecting box, and the rolling roller is positioned between the blanking port and the supporting shaft.
In one embodiment of the invention, the roller pressing device further comprises a baffle, wherein two ends of the baffle are fixedly connected to the side surfaces of the pair of isolation parts, and the bottom end of the baffle is in sliding connection with the annular peripheral surface of the roller pressing roller.
In one embodiment of the invention, the rotary belt is provided with a pair of rotary shafts which are rotatably arranged between the pair of isolation parts, the rotary shafts penetrate through the inner area of the rotary belt, a pair of first brackets are fixedly connected to the center of the surface of the rotary shafts, and a falling plate is fixedly connected to the bottom end of the rotary shafts.
In one embodiment of the invention, the rotary belt further comprises a second bracket which is symmetrically arranged on the surface of the rotary shaft based on the center of the rotary shaft and is positioned in the inner area of the rotary belt.
In one embodiment of the invention, the stirring device further comprises a toothed ring which is rotatably connected to the bottom end of the feeding cylinder, a driving gear is connected to the side surface of the toothed ring in a meshed mode, and a plurality of stirring sheets are fixedly connected to the bottom end of the toothed ring.
The device comprises a conveyor, a film-covering roller, a connecting component I, a winding roller and a connecting component II, wherein the film-covering roller is arranged on one side of an interception frame, does not squeeze a conveying belt in the conveyor and is far away from a separation part of the interception frame, the film-covering roller is wound on the surface of the film-covering roller, the connecting component I is arranged at the end part of the film-covering roller and is arranged on a support of the conveyor, the winding roller is arranged on the conveyor and is positioned at one end of the conveyor for unloading, the film released from the film-covering roller is wound on the surface of the winding roller, and the connecting component II is arranged at the end part of the winding roller and is arranged on the support of the conveyor.
In one embodiment of the invention, the first connecting component is a first hydraulic cylinder, and the second connecting component is a second hydraulic cylinder.
Compared with the prior art, the technical scheme of the invention has the following advantages:
1. According to the pulverized coal distributing device, the filter screen is arranged, so that large-particle pulverized coal in pulverized coal is filtered out by the filter screen during distribution, and is automatically collected, separation of the pulverized coal and the large-particle pulverized coal is realized, a filtering process is not required to be added in advance, and the pulverized coal distributing efficiency is improved.
2. According to the pulverized coal distributing device, the stirring piece is arranged, when the feeding barrel discharges pulverized coal downwards, the driving motor drives the driving gear to rotate, the driving gear drives the toothed ring to rotate, the toothed ring drives the stirring piece to rotate, and the stirring piece stirs the pulverized coal falling from the feeding barrel to the periphery, so that the pulverized coal is further driven to fall onto the filter screen uniformly, and the filtering efficiency of the pulverized coal is further improved.
Drawings
In order that the invention may be more readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings.
FIG. 1 is a schematic overall view of the present invention;
FIG. 2 is a schematic view of the location of an intercept box of the present invention;
FIG. 3 is a schematic view of an intercept box of the present invention;
FIG. 4 is a schematic diagram of a filter screen connection structure according to the present invention;
FIG. 5 is a schematic view showing the internal structure of the collecting box of the present invention;
FIG. 6 is a schematic side view of the filter screen and spacer of the present invention;
FIG. 7 is a schematic view of a shaft connection structure according to the present invention;
FIG. 8 is a schematic cross-sectional view of a feed cylinder attachment structure of the present invention;
FIG. 9 is a schematic view of the position of a laminating roller of the present invention;
FIG. 10 is a schematic view of a laminating roller of the present invention;
FIG. 11 is a schematic view of a connection assembly and a connection assembly in two positions according to the present invention.
The specification reference numerals show that 1, a conveyor, 11, a backing plate, 12, an interception frame, 121, a separation part, 122, an interception part, 13, a feeding cylinder, 131, a toothed ring, 132, an agitating plate, 133, a driving gear, 14, a collecting box, 141, a rolling roller, 142, a driven gear, 143, a driving gear, 144, an inclined plate, 145, a blanking port, 146, a baffle plate, 2, a supporting shaft, 21, a rotating belt, 22, a filter screen, 23, a separation strip, 24, a baffle plate, 3, a rotating shaft, 31, a falling plate, 32, a first bracket, 4, a blocking plate, 5, a laminating roller, 51, a connecting component I, 6, a rolling roller, 61 and a connecting component II.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the invention and practice it.
Referring to fig. 1-6, the pulverized coal distributing device comprises a conveyor 1, a feeding barrel 13, a filter screen 22 and a collecting box 14, wherein the conveyor 1 comprises a bracket and a conveyor belt arranged on the bracket, a pair of base plates 11 are symmetrically arranged on two sides of the conveyor belt, an interception frame 12 is arranged at the top end of the base plate 11, the interception frame 12 comprises a pair of separation parts 121 and interception parts 122 fixedly connected to the pair of separation parts 121, the pair of separation parts 121 are fixedly connected with the top ends of the pair of base plates 11 respectively, the feeding barrel 13 is positioned right above the interception frame 12, the filter screen 22 is provided with a plurality of filter screens 22 positioned inside the interception frame 12, isolation strips 23 are fixedly connected between the plurality of filter screens 22, the plurality of isolation strips 23 are matched with the plurality of filter screens 22 to form an annular structure, the side surfaces of the isolation strips 23 are provided with partition plates 24, the partition plates 24 are respectively connected with the side surfaces of the pair of separation parts 121 in a sliding manner, a pair of support shafts 2 are rotatably arranged between the pair of separation parts 121, the support shafts 2 are rotatably arranged between the pair of separation shafts 2, the interception parts 2 are positioned at a lower than the positions of the support shafts 2 which are respectively and are fixedly connected with the top ends of the pair of support shafts 21, the pair of support shafts 2 are rotatably arranged between the pair of support shafts 2 and the separation shafts 21 are respectively positioned between the pair of the support shafts 2 and the front sides of the collection box 14, and are rotatably connected between the pair of support shafts 2 and the pair of support shafts 21 and are respectively, and are positioned between the pair of support shafts 21 and the support shafts and are respectively and far from the support shafts 2 and are respectively and far from the 14 and respectively and are respectively and rotatably connected;
In the coal preparation operation, a plurality of coal storage towers, also called coal storage bins, exist in a coal yard, different types of coal dust are conveyed into different coal storage towers for standby through a belt conveying device, and then conveyed into a crushing device through a conveying device for crushing in the coal blending operation; in order to solve the problems, the embodiment of the invention can be adopted, specifically, the conveyor 1 is started firstly, the conveyor 1 is controlled to operate, the operation direction is shown as an arrow in figure 1, meanwhile, the pulverized coal is conveyed into the feed cylinder 13 through the conveyor, the conveyor can adopt a spiral feeder, the pulverized coal can be discharged downwards through the feed cylinder 13, meanwhile, the output motor externally connected with the support shaft 2 is started, the support shaft 2 drives the rotating belt 21 to rotate anticlockwise, the rotating belt 21 drives the filter screen 22 and the isolation strip 23 to synchronously rotate, the filter screen 22 falls into the position between the lower support shaft and the lower support shaft 2 and the upper support shaft 122 and is far away from the lower support shaft 2, and the lower support shaft 22 falls into the position of the lower support shaft 122 and is far away from the lower support shaft 122 and is far from the lower support shaft 122 because the lower support shaft 22 is moved to the lower support shaft 122, large-particle coal powder in the coal powder is blocked by the partition plate 24, so that the large-particle coal powder is prevented from rolling downwards along the filter screen 22, and falls downwards into the collecting box 14 when moving to a position far away from the supporting shaft 2 of the interception part 122, and falls downwards onto the conveying belt through the filter screen 22, so that the separation of the coal powder and the large-particle coal powder is realized, a filtering procedure is not required to be added in advance, and the coal powder distribution efficiency is improved; in addition, when the pulverized coal falls onto the conveyer belt to move, the pulverized coal needs to pass through the interception part 122 of the interception frame 12, and the interception part 122 limits the stacking height of the pulverized coal on the conveyer belt and prevents the pulverized coal on the conveyer belt from being excessively stacked so as to generate splashing under the action of air resistance when moving;
it should be noted that, in the technical solution of the present invention, the rotation speed of the supporting shaft 2 during the filtration process of the pulverized coal needs to be designed to allow enough time for the filter screen 22 to filter the pulverized coal, so as to avoid a large amount of pulverized coal being conveyed into the collecting box 14.
Referring to fig. 2-4, when the feeding cylinder 13 drops downwards, the large-particle pulverized coal carried by pulverized coal directly falls down onto the conveying belt through a gap between the rotating belt 21 and the intercepting part 122, and for this purpose, the embodiment of the invention further comprises a blocking plate 4, specifically, the blocking plate 4 is arranged between the intercepting part 122 and the rotating belt 21, the bottom end of the blocking plate 4 is fixedly connected with the top end of the backing plate 11, the top end of the blocking plate 4 is contacted with the boundary of the bottom end of the feeding cylinder 13 near the intercepting part 122, the pulverized coal discharged from the bottom end of the feeding cylinder 13 can be prevented from falling from the gap between the rotating belt 21 and the intercepting part 122, the blocking plate 4 is arranged, the blocking plate 4 is made of elastic plastics, the blocking plate 4 is attached to the surface of the filter screen 22 at first, the blocking plate 24 is made of elastic materials, the pulverized coal falling downwards from the surface of the blocking plate 4 is prevented from falling from the gap between the rotating belt 21 and the intercepting part 122, and when the rotating belt 21 rotates, the filter screen 22 is driven by the blocking plate 24 to synchronously rotate through the isolating strip 23, the blocking plate 24 is smoothly contacted with the filter screen 24 and the blocking plate 24 is smoothly deformed when the blocking plate 24 is contacted with the filter screen 4, and the blocking plate 24 is smoothly vibrated, and the vibration of the end of the filter screen 4 is simultaneously can be prevented from being caused.
Referring to fig. 4-5, the recovered large-particle pulverized coal is always stored in the collecting box 14, and finally the pulverized coal in the collecting box 14 overflows and falls, so that the uniformity of pulverized coal distribution is affected, and the embodiment of the invention further comprises a grinding roller 141 and a tilting plate 144, wherein the grinding roller 141 is arranged in the collecting box 14, a driven gear 142 is arranged at the end of the grinding roller 141, a driving gear 143 is sleeved on the surface of the supporting shaft 2, the driving gear 143 and the driven gear 142 are meshed with each other, a receiving notch 10 is formed on one side of the isolating part 121 facing the rotating belt 21, the driving gear 143 and the driven gear 142 are arranged in the receiving notch 10, the bottom end of the tilting plate 144 is fixedly connected to the inner bottom wall of the collecting box 14, the inclined surface of the tilting plate 144 is positioned at the top end and is contacted with the annular peripheral surface of the grinding roller 141, a blanking port 145 is formed at one end of the tilting plate 144 far away from the grinding roller 141, the blanking port 145 penetrates through the bottom end of the collecting box 14 and is positioned between the blanking port 145 and the supporting shaft 2, the driving gear 143 drives the driving gear 143 to rotate, the driving gear 143 is meshed with the driven gear 142 and the large-particle pulverized coal is meshed with the large-particle pulverized coal in the high-particle pulverized coal in the collecting box by the roller 141 when the roller 144 is contacted with the tilting plate 144, and the large-particle pulverized coal is in the high-particle pulverized coal is in the inclined to the roller 141, and then the large-particle pulverized coal is in contact with the tilting plate 141, and falls down on the roller 141, and the roller is positioned in the high-pressure side of the roller 141, and the roller is in the roller, and the high-pressure surface is contacted with the roller 141, and the roller is in the roller, and the high-shaped particle pulverized coal is in the roller, and the high-particle pulverized coal is placed, the pulverized coal is synchronously conveyed by a conveying belt, so that the secondary pulverization and recovery of large-particle pulverized coal are realized, the secondary pulverization is not needed, and the pulverized coal distribution process is facilitated.
Referring to fig. 4-5, the large-particle coal powder falling through the filter screen 22 may fall to the inclined plate 144 below the grinding roller 141, so that the grinding roller 141 is difficult to grind the large-particle coal powder, and for this purpose, the embodiment of the invention further includes a baffle 146, specifically, two ends of the baffle 146 are fixedly connected to the sides of the pair of isolating parts 121, and the bottom end of the baffle 146 is slidably connected to the annular circumferential surface of the grinding roller 141, when the grinding roller 141 rotates, the coal powder attached to the surface of the grinding roller 141 is scraped off by the bottom end of the baffle 146, and the baffle 146 blocks the large-particle coal powder falling from the filter screen 22, so as to ensure that the large-particle coal powder falls to a position capable of passing through the grinding roller 141.
Referring to fig. 4-7, in order to increase the filtering speed of the filter screen 22 on the pulverized coal, ensure the filtering efficiency of the pulverized coal and prevent the filter screen 22 from being blocked by large-particle pulverized coal during the use process, the embodiment of the invention further comprises a rotating shaft 3 and a first bracket 32; specifically, the rotating shaft 3 is provided with a pair of isolating parts 121, the rotating shaft 3 penetrates through the inner area of the rotating belt 21, a pair of first brackets 32 are fixedly connected to the center of the surface of the rotating shaft 3, a falling plate 31 is fixedly connected to the bottom end of the rotating shaft 3, when the rotating belt 21 drives the filter screen 22 to rotate, the filter screen 22 drives the isolating strips 23 to synchronously rotate, in the process of moving the isolating strips 23, the falling plate 31 on the surface of the rotating shaft 3 is intermittently extruded and swung by the isolating strips 23, so that the rotating shaft 3 drives the first brackets 32 to reciprocate, the first brackets 32 intermittently impact the filter screen 22 when the first brackets 32 reciprocate, so that the filter screen 22 vibrates, and the filtered pulverized coal is accelerated, the smoothness of pulverized coal filtration is improved, and the first brackets 32 impact the filter screen 22 only when the isolating strips 23 extrude the falling plate 31, when the isolating strips 23 cross the falling plate 31, the falling plate 31 drives the rotating shaft 3 under the action of gravity of the self, so that the first brackets 32 cannot block the rotation of the isolating strips 23, the first brackets 32 intermittently impact the filter screen 22, the first brackets 22 can be controlled to be prevented from being blown off by the pulverized coal, and the pulverized coal can be smoothly accumulated by the filter screen 22 through the vibration of the filter screen 22 when the first brackets, and the pulverized coal is prevented from being blown off by the filter screen 22, and the vibration particles are smoothly, and the pulverized coal is prevented from being accumulated by the filter screen 13, therefore, the fluctuation of the pulverized coal falling onto the conveying belt of the conveyor 1 in unit time is not excessive, and the uniform conveying and distribution of the pulverized coal can be realized.
Referring to fig. 4-7, in use, coal dust may fall between the rotating belt 21 and the isolation part 121, and when coal dust gathers more between the rotating belt 21 and the isolation part 121, the rotating stability of the rotating belt 21 is affected, so that the embodiment of the invention further includes a second bracket 33, specifically, the second bracket 33 is symmetrically installed on the surface of the rotating shaft 3 based on the center of the rotating shaft 3 and is located in the inner area of the rotating belt 21, and when the rotating shaft 3 reciprocally rotates, the second bracket 33 intermittently presses the part of the rotating belt 21 near the isolation part 121 and is located between the partition plates 24, so that the rotating belt 21 intermittently deforms, that is, the part of the rotating belt 21 near the isolation part 121 is tilted towards the direction of the filter screen 22, so that the coal dust on the rotating belt 21 is driven to concentrate towards the direction of the filter screen 22, thereby facilitating the process of coal dust passing through the filter screen 22.
Referring to fig. 8, when the feeding cylinder 13 discharges downward, the pulverized coal concentrates on one part of the filter screen 22 to affect the filtering efficiency of the filter screen 22, and therefore, the embodiment of the invention further comprises a toothed ring 131 and stirring sheets 132, wherein the toothed ring 131 is rotatably connected to the bottom end of the feeding cylinder 13, a driving gear 133 is engaged and connected to the side surface of the toothed ring 131, a plurality of stirring sheets 132 are fixedly connected to the bottom end of the toothed ring 131, the driving gear 133 is externally connected with a driving motor, when the feeding cylinder 13 discharges pulverized coal downward, the driving motor drives the driving gear 133 to rotate, the driving gear 133 drives the toothed ring 131 to rotate, the toothed ring 131 drives the stirring sheets 132 to rotate, and the stirring sheets 132 stir the pulverized coal falling from the feeding cylinder 13 to the periphery, so as to further drive the pulverized coal to uniformly fall onto the filter screen 22, and further improve the filtering efficiency of the pulverized coal.
Referring to fig. 9-11, in order to avoid falling off of pulverized coal on a conveyor belt caused by air resistance when the pulverized coal is conveyed by the conveyor belt, the embodiment of the invention further comprises a film covering roller 5 and a winding roller 6; specifically, the film coating roller 5 is arranged on one side of the interception frame 12 and does not squeeze a conveyor belt in the conveyor 1, and is far away from an isolation part 121 of the interception frame 12, a film is wound on the surface of the film coating roller 5, a first connecting component 51 is arranged at the end of the film coating roller 5 and is arranged on a support of the conveyor 1, the winding roller 6 is arranged on one end of the conveyor 1 for unloading, a film released from the film coating roller 5 is wound on the surface of the winding roller 6, a second connecting component 61 is arranged at the end of the winding roller 6 and is arranged on the support of the conveyor 1, a control motor is arranged at the end of the winding roller 6 and is arranged on the support of the conveyor 1, the winding roller 6 is rotatably arranged on the second connecting component 61 through a mounting plate, a feeding motor is arranged at the end of the film coating roller 5 and is arranged on the support of the conveyor 1, when the conveyor belt is removed from the interception frame 122, the feeding motor is started to drive the film coating roller 5 to rotate, the film coating roller 5 is wound on the surface of the conveyor belt, the winding motor is wound on the surface of the film coating roller 6, then the coal dust is prevented from falling off, the coal dust is prevented from moving along with the conveyor belt when the coal dust is completely, the coal dust is completely removed, the coal dust is completely removed from the conveyor is conveyed, and the coal dust is completely is removed, and the coal is prevented from the coal dust is continuously from the conveyor is continuously being removed by the conveyor coal dust is continuously moving on the conveyor belt, and the conveyor is continuously, and the coal dust is continuously removed by the coal is continuously moving on the coal dust is continuously, and the coal is continuously moving on the coal is continuously and the coal is conveyed, the film on the film laminating roller 5 is equal to the bottom end of the interception part 122 in height at the beginning, so that the pulverized coal on the conveying belt is not extruded.
In the process that the film coating roller 5 releases the film and the wind-up roller 6 winds the film, the whole diameter of the film coating roller 5 is gradually reduced, and the whole diameter of the wind-up roller 6 is gradually increased, so as to avoid the influence of inclination of the film on the using effect; the embodiment of the invention is provided with a first hydraulic cylinder and a second hydraulic cylinder, a first connecting component 51 is specifically a first hydraulic cylinder, a second connecting component 61 is specifically a second hydraulic cylinder, when the film laminating roller 5 releases a film and a winding roller 6 to wind the film during use, the first hydraulic cylinder and the second hydraulic cylinder respectively drive the film laminating roller 5 to move downwards, and the winding roller 6 moves upwards, so that the film is always horizontally covered on coal dust on a conveying belt, and the use effect of the film is prevented from being influenced by the change of the integral diameters of the film laminating roller 5 and the winding roller 6.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present invention will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present invention.