CN114985258A - Method for increasing screening area of screening machine - Google Patents
Method for increasing screening area of screening machine Download PDFInfo
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- CN114985258A CN114985258A CN202210540856.2A CN202210540856A CN114985258A CN 114985258 A CN114985258 A CN 114985258A CN 202210540856 A CN202210540856 A CN 202210540856A CN 114985258 A CN114985258 A CN 114985258A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/12—Apparatus having only parallel elements
- B07B1/14—Roller screens
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The invention relates to the technical field of metallurgical mining engineering, in particular to a method for increasing the screening area of a screening machine. A method for increasing screening area of screening machine features that a movable triangular distributor is arranged at the head of raw ball discharging belt of balling disk, and the flat rollers are used as the first group of rollers at the head of raw ball discharging belt, the raw balls are driven by the speed of discharging belt, and the raw ball impacting triangular distributor divides the raw balls into two parts to decrease the height of raw ball pile and increase the area of raw ball dispersing. The invention has the beneficial effects that: 1. the screening area of the roller type screening machine is increased to more than 70 percent from 40 to 55 percent. 2. The green ball forming rate of the pelletizing system is improved from 72.87% to 76.5%.
Description
Technical Field
The invention relates to the technical field of metallurgical mine engineering, in particular to a method for increasing the screening area of a screening machine.
Background
The iron ore oxidized pellets are important raw materials for blast furnace smelting, account for 20-30%, and the pellet production is of great importance for the blast furnace smelting. In recent years, the development of grate-rotary kiln pellets in China is rapid, the kiln saving of the first steel pellet factory is successfully improved in 2000 years, hundreds of production lines are built in more than twenty years till now, and the pellet yield is increased day by day. In the pelletizing process, the preparation and screening of green pellets have a significant impact on the overall system yield and product quality.
At present, a disc pelletizer and a cylinder pelletizer are adopted for domestic green ball preparation, most of the green balls are produced by iron ore concentrate powder containing certain moisture and added with bentonite, the green balls with larger (more than 16mm) and smaller (less than 8 mm) particle size fraction discharged by the pelletizer are screened out by a roller type green ball screening machine, and the green balls with qualified particle size fraction (8-16mm) are supplied to a lower process chain grate-rotary kiln system.
A mine in Bin county is provided with 10 disk pelletizer and 10 roller type sieving machines respectively, green pellets fall onto a green pellet small belt (with the width of 900 mm) after being output from the pelletizer, are conveyed to the roller type sieving machine by the green pellet belt, unqualified green pellets are returned to a system for re-pelletizing after being sieved, and qualified green pellets enter a next procedure (the process flow is shown in figure 1).
The screening machine installation roller model does: diameter 80MM 1800MM, the number of radicals: 30-34, 13-15 screen rollers in the small ball area with the gap of 8mm, and screening green balls (the process index green ball granularity is 8-16mm) smaller than 8mm onto a material returning belt to enter the pelletizing raw material again; 17-19 screen rollers are arranged in the qualified ball area, the gap is 16mm, and raw balls which meet the requirement and are 8-16mm are screened by the screen rollers and enter the next procedure for sintering; the green balls larger than 16mm enter a material returning belt through the front end of the sieving machine.
Because the ejection of compact point of ball dish shelters from (prevents that the green ball from falling out the belt) because of the both sides guardrail, the area ratio of scattering of ejection of compact point is concentrated, and the green ball falls to be the bar on the little belt and piles the form: high and narrow. When the green pellets fall onto the sieving machine again, the green pellets cannot be completely dispersed, and only occupy the area 1/3-1/2 of the sieving machine.
Due to the small screening area, it often causes: (1) the green balls smaller than 8mm pass through a screening machine with a roller screen clearance of 8mm, one part falls on a return belt, and the other part of small balls which are not fully screened are mixed in large balls and fall on a qualified ball belt to enter the next working procedure. (2) The 8-16mm green pellets pass through a screening machine with a roller screen clearance of 16mm, a large part of the green pellets fall on a qualified pellet belt to enter the next procedure, and a part of 8-16mm qualified green pellets enter a return system because the screening area is not effectively utilized and is mixed in large pellets with the size of more than 16 mm.
Finally, qualified balls are returned, unqualified green balls smaller than 8mm are mixed in the qualified balls, and the green ball forming rate is reduced. The atmosphere of the rotary kiln is influenced, and the production quality of the pellet is influenced.
Disclosure of Invention
The invention aims to solve the problems and provides a method for increasing the screening area of a screening machine.
The purpose of the invention is realized by the following steps: a method for increasing the screening area of screening machine features that a movable triangular distributor is arranged at the head of raw ball discharging belt of balling disk, and the flat rollers are used as the first group of rollers on the drum at the head of raw ball discharging belt.
The triangular distributor is a triangular fixed frame with an inner part and an outer frame consisting of two right-angle plates; the internal triangular fixing frame is used for fixing the two right-angle plates to be not deformed and not change the angle on one hand, and supporting the triangular distributor to be fixed at the head of the green ball small belt on the other hand, so that the triangular distributor can move left and right in parallel; the material distribution angle formed by the two outer right-angle plates is 61-63 degrees, the top end of the triangular distributor is provided with a front baffle, a broken ball formed by contacting the triangular distributor in the raw ball discharging process is changed into a mixture adhered to the front baffle, and accumulated ore formed when the subsequent raw balls pass through the triangular distributor again slides with the running raw balls, so that the problem of repeated crushing of the raw balls is solved; the angle of the triangular distributor and the length of the following right-angle side are determined according to the width of the small discharging belt and the roller type sieving machine: when the small amount of raw pellets is 45-55 tons, the belt width of the small green pellet skin is 900-.
The triangular distributor fixing rod is a steel plate arranged at the head parts of two sides of the head part of the screening machine frame body and is used as a triangular distributor mounting support column, a first steel pipe is erected between the two steel plates, two sections of first long steel pipes are sleeved in the middle of the first steel pipe, and the two ends of the first steel pipe are fixed by nuts to form the fixing rod, so that the triangular distributor can move left and right conveniently in the next step; a second steel pipe is erected between the two steel plates, a section of second long steel pipe is sleeved in the middle of the second steel pipe, and two ends of the second steel pipe are fixed by nuts to form a positioning rod, so that the triangular material distributor can move left and right conveniently in the next step; the second steel pipe is arranged above the first steel pipe.
The triangular distributor is flatly placed in the middle of a green ball belt, the bottom right-angle edge of the triangular distributor is axially tangent to the middle diameter of a belt roller, and 2 sections of steel pipes are welded at two bottom angles of the bottom edge of a tripod fixed by a steel structure in the triangular distributor and are welded with the middle part of a fixed rod to form a fixing mechanism of the triangular distributor; an angle steel strut is welded at the top angle of the triangular distributor, a nut is welded at the top of the angle steel strut, a nut is welded in the middle of a second long steel pipe of the positioning rod, two nut screw holes are parallel, the two nuts are connected and fixed, and the inclination angle of the screw is 14.5-15.5 degrees.
The movable triangular distributor moving function is designed, a long steel pipe is welded in parallel with a fixed rod and a positioning rod in the middle of two steel pipes of the fixed triangular distributor and is a moving rod of the triangular distributor, the other end of the moving rod is welded with a waste valve handle, the two long steel pipes of the fixed rod of the triangular distributor are welded into a non-base triangular frame through flat iron, and the whole parallel movement of the triangular distributor is realized.
The first group of flat carrier rollers comprises a roller at the head of the green ball belt, and the flat length of the small belt is increased.
The invention has the beneficial effects that: 1. the screening area of the roller type screening machine is increased to more than 70 percent from 40 to 55 percent.
2. The green ball forming rate of the pelletizing system is improved from 72.87% to 76.5%.
3. The pellet production amount is controlled from 390 tons to 410 tons per hour to 270 tons per hour and is reduced to 280 tons per hour: the production of the green pellets by the pellet mill is 360-380 tons/hour, and the pellet production is 270-280 tons/hour.
4. The power consumption can be reduced by about 100 ten thousand yuan per year.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a process diagram of a qualified green ball according to the background art. Iron ore concentrate powder enters the ball disc bin through a Z1 belt, becomes a green pellet through a disc pelletizer and falls into a green pellet discharging small belt, after the green pellet is screened by a roller type screening machine, unqualified green pellets reach a Z53 belt through a Z51 returning belt and a Z52 returning belt, enter the pelletizing system again for pelletizing, and qualified green pellets fall into the belt and are conveyed to a next process for roasting.
Fig. 2 is a front view of a mobile three-angle separator.
Fig. 3 is a side view of a mobile three-angle separator.
The method comprises the following steps of 1, returning materials to a Z1 belt, 2.Z1 belts, 3. ball disc storage bins, 4. mixed materials, 5. a disc pelletizer, 6. green ball discharging small belts, 7. a roller type sieving machine, 8.Z51 ore returning belts, 9.Z52 ore returning belts, 10. Z53 unqualified green balls with belts, 11. qualified green balls and 12. roasting, 13. green ball small belts, 14. a roller, 15. a moving rod, 16. a push-pull handle, 17. a fixed rod, 18. a steel pipe for preventing the triangular distributor from moving back and forth, 19. a steel pipe for preventing the triangular distributor from moving up and down, 20. a triangular distributor, 21. a triangular distributor and 22. a support.
(1) Triangular distributor shape
The device comprises two parts: the inside is a triangular fixed mount, and the outer frame is a distributor composed of two right-angle plates. The internal triangle fixing frame is made of 50 angle steels, and the side length is 310 × 314mm (shown in the figure). The outer frame square is made with delta =20mm polyethylene non-stick board, and two square sizes are: the right-angle side 210mm is 600mm, the hypotenuse side is 725mm, and the angle formed by the two right-angle plates is 61-63 degrees. The triangular fixing frame and the two right-angle plates are fixed by 4 phi 12mm by 40mm screws to form the triangular distributor.
(2) Triangular distributor mounting
(1) Welding steel plates delta =10mm 170mm 100mm at the heads of the two sides of the head of the screening machine frame body 360mm, fixing two 100mm channel steel at the two ends by phi 12mm screws, and enabling the height to be 860 mm. The screening machine and the green ball belt are convenient to disassemble during maintenance. At two channel-section steel height 840mm department, cut and draw phi 30 hole, erect 1 2330mm1 inch ordinary steel pipe, both ends are fixed by phi 24 nut, 2 sections 1.2 inch 40mm long steel pipes (be referred to as the dead lever for short, make things convenient for next step tripper to move about) are worn to the middle part. At the position 860mm high of two channel steels, the internal diameter of the welded part is phi 28 nuts, 1 2330mm 1-inch common steel pipe is erected, two ends of the steel pipe are fixed by phi 24 nuts, and the middle part of the steel pipe is sleeved with 1 section of 1.2-inch 40mm long steel pipe (a push-pull rod for short, which is convenient for the left-right movement of a distributor in the next step).
(3) Triangular distributor movement
The steel pipe with the length of 1760mm of 6 inch is vertically welded on two steel pipes with the length of 1760mm, which are fixed on the distributor and prevent the distributor from moving back and forth, and is a moving rod of the triangular distributor, and the other end of the moving rod is welded with a waste valve handle (phi 150mm-240 mm), which is beneficial to the operation of the moving rod.
Detailed Description
The invention designs a method for increasing the screening area of a screening machine, which comprises the following steps:
(1) a triangular material distributing device is additionally arranged at the head of the green pellet small belt, and the green pellets stacked in a strip shape on the belt are divided into two parts to fall onto the sieving machine, so that the sieving area of the sieving machine is increased.
(2) According to the change of the raw ball material amount on the belt, the triangular distributor can move left and right in parallel.
(3) The fixing screws of the brackets at the two ends of the triangular distributor are connected in a penetrating manner, so that the screening machine is convenient to overhaul.
(4) The first bearing roller of green ball belt head uses flat bearing roller, increases the roughness of little belt, reduces the windrow material height of green ball on the one hand, and on the other hand reduces the impact force of green ball to feed divider.
Because the moisture of the green balls is between 9.5 and 10.2 percent and the binder of the green balls is bentonite, the green balls stacked together fall onto the sieving machine from the belt head wheel, and are slowly and gradually spread only at one falling point at the beginning, so that the sieving area of the sieving machine is small and the sieving efficiency is poor.
The technical conception is as follows:
1. a movable triangular distributor is manufactured at the head of a small belt with the width of 900mm for raw ball discharging of a pelletizing disc, a first group of carrier rollers at the position of the distance of 1000mm from the head of the raw ball belt phi 300mm roller use flat carrier rollers, raw balls are driven by the speed of a discharging belt, and the raw ball impact triangular distributor divides strip-shaped piled raw balls into two parts for dispersing, so that the height of raw ball piling is reduced, and the dispersing area of the raw balls is enlarged.
(1) Triangular distributor shape
The device comprises two parts: the inside is a triangular fixed mount, and the outer frame is a triangular distributor composed of two right-angle plates. The internal triangular fixing frame is made of 50 angle steels, the side length is 310 x 314mm, on one hand, two right angle plates are fixed and do not deform, the angle does not change, on the other hand, the triangular distributor is supported and fixed at the head of a raw ball small belt, and the triangular distributor can move left and right in parallel. The outer frame square is made with delta =20mm polyethylene non-stick board, and two square sizes are: the right-angle side 210mm is 600mm, the hypotenuse side is 725mm, and the angle formed by the two right-angle plates is 61-63 degrees. The triangular fixed frame and the two right-angle plates are fixed by 4 phi 12mm by 40mm screws to form the triangular distributor.
The triangle-shaped mount is installed in the inside of two right angle minute flitchs, plays fixed effect, and two fixed right angle editions do not warp on the one hand, the angle does not change, and on the other hand is fixed the triangle tripper on green ball little belt head support frame, moves about the realization.
The triangular distributor is made of a polyethylene non-stick plate, a front baffle (40 mm wide and 210mm high) is formed at the top end of the triangular distributor by utilizing the thickness of the polyethylene non-stick plate with the width of delta =20mm, green balls are contacted by the triangular distributor in the running process to form broken balls, the broken balls are changed into mixed materials to be adhered to the front baffle of the non-stick plate, and the accumulated ores formed when the green balls pass through the triangular distributor again slide with the green balls, so that the problem of crushing the green balls is solved; the angle of triangle tripper and the length of following right-angle side are according to roller type screening machine width decision, and the roller type screening machine screening width of a certain ore deposit in generation county is 1400mm, and the inclination is 61-63 for 10 triangle tripper angle determinism, and following right-angle side is 600mm, and the angle is too big, right-angle side overlength, makes the green ball drop belt head wheel lower part easily, and the angle undersize, right-angle side are too short, do not play the effect of branch material.
(2) Triangular distributor mounting
(1) Welding steel plates delta =10mm 170mm 100mm at the heads of the two sides of the head of the screening machine frame body 360mm, fixing two 100mm channel steel at the two ends by phi 12mm screws, and enabling the height to be 860 mm. The triangular distributor is provided with the support column, which is convenient for disassembling the sieving machine and the green ball belt during maintenance. At the position of two channel steels of 840mm height, cut phi 30 hole, erect 1 2330mm1 inch ordinary steel pipes, both ends are fixed by phi 24 nut, 2 sections of 1.2 inch 40mm long steel pipes (for short the dead lever, make things convenient for the left and right sides of triangle tripper in next step) are worn in the middle part. At the position 860mm high of two channel steels, the internal diameter of the welded part is phi 28 nuts, 1 2330mm 1-inch common steel pipe is erected, two ends of the steel pipe are fixed by phi 24 nuts, and the middle part of the steel pipe is sleeved with 1 section of 1.2-inch 40mm long steel pipe (a push-pull rod for short, which is convenient for the left-right movement of the triangular distributor in the next step).
(2) Triangular distributor mounting
The triangular distributor is horizontally placed at the middle part of a 900mm small belt for raw balls, the right-angle side of the bottom of the triangular distributor is axially tangent to the middle diameter of a diameter belt roller of which diameter is 300mm, and the gap is 0.5 mm. 2 sections of 1 inch 200mm steel pipes are welded at 80mm positions of 2 bottom angles at the bottom edge of a tripod fixed by a steel structure in the triangular distributor and the middle part of a fixed rod (namely 2 sections of 1.2 inch 40mm long steel pipes) are welded. Forming a triangular distributor fixing mechanism. A40-angle steel 100 mm-long strut is welded at the vertex angle of the triangular distributor, phi 20 nuts 1 are welded at the top of the angle steel, phi 20 nuts (two nut screw holes are parallel) are welded on a 1.2-inch 40mm long steel pipe of the positioning rod 1 section, phi 14 is used for vertically connecting the two nuts by a phi 560mm screw, and the inclination angle of the screw is 15 degrees. In the material distributing process of the triangular distributor, the triangular distributor is often pushed to bounce up and down on a belt under the impact of green balls, and the triangular distributor bounces up and down on a working surface of the belt to influence the material distributing effect; the triangular distributor is used for a period of time, the lower edge of the contact part of the non-stick plate and the belt is damaged, the phenomenon of blocking and damaging the raw balls occurs, the screw rod is used for fixing the triangular distributor to do not bounce up and down, when the abrasion of the non-stick plate of the triangular distributor and the contact gap of the belt are increased, the phenomenon of blocking and damaging the raw balls occurs, the gap between the fixed triangular distributor and the belt is adjusted by the screw rod, the accuracy is up to 0.5mm, and therefore the function of the triangular distributor is played normally.
2 sections of 1 inch 200mm steel pipes are welded at 80mm positions of 2 bottom angles at the bottom edge of a tripod fixed by a steel structure in the triangular distributor and the middle part of a fixed rod (namely 2 sections of 1.2 inch 40mm long steel pipes) are welded. Forming a triangular distributor fixing mechanism.
(3) Triangular distributor movement
The middle parts of two 1-inch 200mm steel pipes which are prevented from moving back and forth by the fixed triangular distributor are welded with 6-inch 1760mm long steel pipes in parallel with the fixed rod and the positioning rod, the steel pipes are moving rods of the triangular distributor, and the other ends of the moving rods are welded with waste valve handles (phi 150mm-240 mm), so that the operation of the moving rods is facilitated.
Two fixed rods of the triangular distributor are welded into 185mm bottomless triangular frames with outer edges by using delta =4mm flat iron for three sections of 1.2-inch 40mm long steel tubes, and the integral parallel movement of the triangular distributor is realized.
2. The head of the green ball belt is improved.
Diameter 89 x 1000mm flat bearing roller is installed to the first group bearing roller of diameter distance belt frame 1000mm department in the little belt head diameter phi 300 cylinder of raw ball width, increases the roughness of little belt, reduces the pile height of raw ball on the one hand, and on the other hand reduces triangle tripper and receives raw ball impact force.
Examples
1. Manufacture of triangular distributor
The triangle-shaped mount among the triangle-shaped tripper is installed in the inside of two right angle trippers, plays fixed effect, fixes two right angle boards on the one hand and indeformable, the angle does not change, and on the other hand is fixed the triangle-shaped tripper at green ball little belt head to can remove about at any time.
The triangular material distributor is made of a polyethylene non-stick plate, a front baffle (40 mm wide and 210mm high) is formed at the top end of the triangular material distributor by utilizing the thickness of the polyethylene non-stick plate with the width of delta =20mm, green balls are contacted by the triangular material distributor in the running process to form broken balls, the broken balls become mixed materials to be adhered to the front baffle, and accumulated ores formed when the green balls pass through the triangular material distributor again slide with the green balls, so that the problem of crushing the green balls is solved; the angle of triangle tripper and the length of following right-angle side are according to roller type screening machine width decision, and the roller type screening machine screening width of a certain ore deposit in generation county is 1400mm, and triangle tripper divides material angle to decide for 61-63, and following right-angle side is 600mm, and the angle is too big, right-angle side overlength, makes the green ball drop to the little belt head wheel lower part of green ball easily, and the angle undersize, right-angle side are too short, do not play the effect of branch material.
2. Triangular distributor mounting and moving
Because the triangular distributor is impacted by the green pellets in the using process, the triangular distributor is often jacked up to leave the green pellet small belt and cannot distribute the green pellets, the nut is welded on the triangular fixing frame, the nut at the other end is welded on the welding machine nut on the positioning rod, and the nut is connected with the positioning rod in a penetrating way by the screw rod. The triangle tripper is dividing the material in-process, receive the impact of green ball, often can push up the triangle tripper and beat from top to bottom at the belt, influence the effect of dividing the material, the triangle tripper uses damage below the part of non-stick board and belt contact for a period of time, the card decreases the green ball phenomenon and takes place, the effect of this screw rod is that fixed triangle tripper does not take place to beat from top to bottom, when triangle tripper non-stick board wearing and tearing and belt contact clearance increase, utilize the clearance of fixed triangle tripper and belt of screw rod adjustment, accurate to 0.5 millimeter, thereby make the triangle tripper effect obtain normal performance again.
Because the raw ball amount of the ball tray changes, the material piling point of the belt changes, the position of the raw balls falling on the small belt often changes, and then the triangular distributor is often required to be moved. A steel pipe with the length of 6 English cents 1760mm is welded on two 200mm steel pipes of the fixed triangular distributor in parallel and is a moving rod of the triangular distributor, and a waste valve handle is welded at the other end of the moving rod to facilitate the operation of the moving rod.
A1.2-inch 2000mm long steel pipe of two fixed rods and three sections of a triangular distributor is welded by a delta =4mm flat iron to form a 185mm bottomless triangular frame welded connection, and the whole parallel movement of the triangular distributor in the operation process of a movable rod is facilitated.
The non-stick plate of the triangular distributor is 2 rectangular plates, the dead weight is too large, the movement is difficult, and the triangular distributor is finally determined to be triangular after being reformed for many times.
Because the moisture of the green balls is between 9.5 and 10.2 percent and the binder of the green balls is bentonite, the green balls stacked together fall onto the sieving machine from the belt head wheel, and are slowly and gradually spread only at one falling point at the beginning, so that the sieving area of the sieving machine is small and the sieving efficiency is poor.
The patent is a method for increasing the screening area of a screening machine, a movable triangular distributor is manufactured at the head of a raw ball discharging small belt of a pelletizing disc, flat carrier rollers are used at the distance from the head of the raw ball belt to a first group of carrier rollers of 1000mm of a roller, raw balls are driven by the speed of a discharging belt, a strip-shaped piled raw ball is divided into two by a raw ball impact triangular distributor, the height of the raw ball pile is reduced, and the dispersing area of the raw ball is enlarged. This patent has very high economic benefits to large-scale pellet production line, can use on all screening machines.
The above description is only an embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any changes or modifications within the scope of the present invention by those skilled in the art are covered by the present invention.
Claims (6)
1. The method for increasing the screening area of the screening machine is characterized in that: set up a portable triangle tripper at balling disc green ball ejection of compact belt head to use flat bearing roller at the first group bearing roller of green ball ejection of compact belt head cylinder department, utilize ejection of compact belt speed to drive green ball, green ball strikes triangle tripper and divides strip pile form green ball into two, reduces green ball windrow height, enlarges green ball dispersion area.
2. The method of increasing the screening area of a screening machine according to claim 1, wherein: the triangular distributor is a triangular fixed frame with an inner part and an outer frame consisting of two right-angle plates; the internal triangular fixing frame is used for fixing the two right-angle plates to be not deformed and not change the angle on one hand, and supporting the triangular distributor to be fixed at the head of the green ball small belt on the other hand, so that the triangular distributor can move left and right in parallel; the material distribution angle formed by the two outer right-angle plates is 61-63 degrees, the top end of the triangular distributor is provided with a front baffle, a broken ball formed by contacting the triangular distributor in the green ball discharging process is changed into a mixture adhered to the front baffle, and accumulated ore formed when the subsequent green ball passes through the triangular distributor again slides with the running green ball, so that the problem of repeated crushing of the green ball is solved; the angle of the triangular distributor and the length of the following right-angle side are determined according to the width of the small discharging belt and the roller type sieving machine: when the small amount of raw pellets is 45-55 tons, the belt width of the small green pellet skin is 900-.
3. The method of increasing the screening area of a screening machine according to claim 1, wherein: the fixing rods of the triangular distributor are steel plates arranged at the heads of two sides of the head of the screening machine frame body and used as mounting support columns of the triangular distributor, a first steel pipe is erected between the two steel plates, two sections of first long steel pipes are sleeved in the middle of the first steel pipe, and the two ends of the first steel pipe are fixed by nuts to form the fixing rods, so that the triangular distributor can conveniently move left and right on the next step; a second steel pipe is erected between the two steel plates, a section of second long steel pipe is sleeved in the middle of the second steel pipe, and two ends of the second steel pipe are fixed by nuts to form a positioning rod, so that the triangular material distributor can move left and right conveniently in the next step; the second steel pipe is arranged above the first steel pipe.
4. The method of increasing the screening area of a screening machine according to claim 1, wherein: the triangular distributor is flatly placed in the middle of the green ball belt, the bottom right-angle edge of the triangular distributor is axially tangent to the middle diameter of the belt roller, and 2 sections of steel pipes are welded at two bottom corners of the bottom edge of a tripod fixed by a steel structure in the triangular distributor and are welded with the middle part of a fixed rod to form a fixing mechanism of the triangular distributor; an angle steel strut is welded at the top angle of the triangular distributor, a nut is welded at the top of the angle steel strut, a nut is welded in the middle of a second long steel pipe of the positioning rod, screw holes of the two nuts are parallel, the two nuts are connected and fixed, and the inclination angle of the screw rod is 14.5-15.5 degrees.
5. The method of increasing the screening area of a screening machine according to claim 1, wherein: the movable triangular distributor moving function is designed, a long steel pipe is welded in parallel with a fixed rod and a positioning rod in the middle of two steel pipes of the fixed triangular distributor and is a moving rod of the triangular distributor, the other end of the moving rod is welded with a waste valve handle, the two long steel pipes of the fixed rod of the triangular distributor are welded into a non-base triangular frame through flat iron, and the whole parallel movement of the triangular distributor is realized.
6. The method of increasing the screening area of a screening machine according to claim 1, wherein: the first group of flat carrier rollers comprises a roller at the head of the green ball belt, and the flat length of the small belt is increased.
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3034410C1 (en) * | 1980-09-12 | 1981-12-17 | Accord-Landmaschinen Heinrich Weiste & Co, Gmbh, 4770 Soest | Breitsaeschar |
| CN106607329A (en) * | 2015-10-23 | 2017-05-03 | 湖南新发展农牧科技有限公司 | Vibratory feed screen |
| CN206731508U (en) * | 2017-04-10 | 2017-12-12 | 内蒙古三主粮天然燕麦产业股份有限公司 | A kind of vibratory sieve feeding-distribution device |
| CN210675855U (en) * | 2019-08-07 | 2020-06-05 | 河南祥盛陶粒有限公司 | High-efficient screening plant of quartz sand |
| CN210788051U (en) * | 2019-09-20 | 2020-06-19 | 鞍钢集团矿业有限公司 | Material guide device for pelletizing roller type sieving machine |
| CN211268579U (en) * | 2019-09-29 | 2020-08-18 | 云南神农农业产业集团股份有限公司 | Fodder granulation system |
| CN211330282U (en) * | 2019-12-13 | 2020-08-25 | 中郡庄艺(泉州)新材料有限公司 | Multilayer screening machine for microcrystalline jade |
| CN212173694U (en) * | 2020-01-17 | 2020-12-18 | 山东省冶金设计院股份有限公司 | Feeding chute of dry type screening machine |
| CN213914711U (en) * | 2020-12-03 | 2021-08-10 | 福建三钢闽光股份有限公司 | Roller screening material device |
| CN215198184U (en) * | 2021-10-22 | 2021-12-17 | 新乡市高服机械股份有限公司 | Gravity-flow homogenizing device |
| CN215709122U (en) * | 2021-08-20 | 2022-02-01 | 北京建工资源循环利用投资有限公司 | Material distributing device for screening machine |
| CN216064299U (en) * | 2021-09-23 | 2022-03-18 | 泉州众德机械有限公司 | A reposition of redundant personnel feeding storehouse for screening machine |
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2022
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3034410C1 (en) * | 1980-09-12 | 1981-12-17 | Accord-Landmaschinen Heinrich Weiste & Co, Gmbh, 4770 Soest | Breitsaeschar |
| CN106607329A (en) * | 2015-10-23 | 2017-05-03 | 湖南新发展农牧科技有限公司 | Vibratory feed screen |
| CN206731508U (en) * | 2017-04-10 | 2017-12-12 | 内蒙古三主粮天然燕麦产业股份有限公司 | A kind of vibratory sieve feeding-distribution device |
| CN210675855U (en) * | 2019-08-07 | 2020-06-05 | 河南祥盛陶粒有限公司 | High-efficient screening plant of quartz sand |
| CN210788051U (en) * | 2019-09-20 | 2020-06-19 | 鞍钢集团矿业有限公司 | Material guide device for pelletizing roller type sieving machine |
| CN211268579U (en) * | 2019-09-29 | 2020-08-18 | 云南神农农业产业集团股份有限公司 | Fodder granulation system |
| CN211330282U (en) * | 2019-12-13 | 2020-08-25 | 中郡庄艺(泉州)新材料有限公司 | Multilayer screening machine for microcrystalline jade |
| CN212173694U (en) * | 2020-01-17 | 2020-12-18 | 山东省冶金设计院股份有限公司 | Feeding chute of dry type screening machine |
| CN213914711U (en) * | 2020-12-03 | 2021-08-10 | 福建三钢闽光股份有限公司 | Roller screening material device |
| CN215709122U (en) * | 2021-08-20 | 2022-02-01 | 北京建工资源循环利用投资有限公司 | Material distributing device for screening machine |
| CN216064299U (en) * | 2021-09-23 | 2022-03-18 | 泉州众德机械有限公司 | A reposition of redundant personnel feeding storehouse for screening machine |
| CN215198184U (en) * | 2021-10-22 | 2021-12-17 | 新乡市高服机械股份有限公司 | Gravity-flow homogenizing device |
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