CN217322023U - Spiral conveying device with shaft end sealing structure - Google Patents

Abstract

The utility model relates to a screw conveyer with axle head seal structure, include: the device comprises a shell, wherein a feed inlet and a discharge outlet are respectively arranged at two ends of the shell, the feed inlet is positioned at the upper side of the shell, the discharge outlet is positioned at the lower side of the shell, a conveying shaft and a spiral blade fixed on the conveying shaft are arranged in the shell, two ends of the conveying shaft respectively extend out of the shell and are rotatably connected with a bearing seat, one end of the conveying shaft penetrates through the bearing seat and is connected with the output end of a driving device, an isolation bin protruding out of the shell is arranged on the shell and is positioned between the discharge outlet and the bearing seat, a partition plate is rotatably arranged in the isolation bin and fixed on the conveying shaft, a plurality of annular bulges are arranged on one side of the partition plate far away from the spiral blade, and a plurality of annular chutes matched with the annular bulges are arranged on the inner side wall of the isolation bin close to the bearing seat.

Description

Spiral conveying device with shaft end sealing structure

Technical Field

The utility model relates to a titanium white powder production facility technical field, concretely relates to spiral delivery mechanism with axle head seal structure.

Background

Titanium dioxide, commonly known as titanium dioxide (TiO2), is an important chemical raw material, has very stable physical and chemical properties, excellent optical and electrical properties and excellent pigment properties, and has important application in the industries of coatings, printing ink, papermaking, plastic rubber, chemical fibers, ceramics and the like. The titanium dioxide manufacturing process mainly comprises a sulfuric acid method and a chlorination method, wherein the sulfuric acid method is taken as a main process. The sulfuric acid method is to carry out acidolysis reaction on ferrotitanium powder and concentrated sulfuric acid to produce titanyl sulfate, generate metatitanic acid through hydrolysis, and obtain a titanium dioxide product through calcination and crushing. In the production process of titanium dioxide, a screw conveyor is required to be frequently adopted to convey raw materials or finished titanium dioxide products, and the screw conveyor is conveying equipment which utilizes the rotation of a helical blade to push materials to be conveyed along a trough. The axle head of current screw conveyer's transport axle passes through the bearing and rotates and install in screw conveyer casing, the protection is sealed to the both ends of casing adoption sealing device, but in the in-service use, when titanium white powder moved in screw conveyer casing, the material in the casing very easily gets into sealing device through the clearance between each part and causes the axle in the sealing device, the wearing and tearing of parts such as bearing damage even, and sealing device can reduce gradually at long-time use sealed effect, make the material spill from screw conveyer's sealed department, the production environment that makes the titanium white powder is abominable, be unfavorable for producers ' healthy.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a screw conveyer with axle head seal structure to the axle head department of screw conveyer leaks the material among the solution prior art, and the material gets into parts such as bearing counter shaft, bearing and causes the condition of damage.

The utility model provides a solve above-mentioned technical problem and provide a screw conveyer with axle head seal structure, include: the device comprises a shell, wherein a feed inlet and a discharge outlet are respectively arranged at two ends of the shell, the feed inlet is positioned at the upper side of the shell, the discharge outlet is positioned at the lower side of the shell, a conveying shaft and a spiral blade fixed on the conveying shaft are arranged in the shell, two ends of the conveying shaft respectively extend out of the shell and are rotatably connected with a bearing seat, one end of the conveying shaft penetrates through the bearing seat and is connected with the output end of a driving device, an isolation bin protruding out of the shell is arranged on the shell and is positioned between the discharge outlet and the bearing seat, a partition plate is rotatably arranged in the isolation bin and fixed on the conveying shaft, a plurality of annular bulges are arranged on one side of the partition plate far away from the spiral blade, and a plurality of annular chutes matched with the annular bulges are arranged on the inner side wall of the isolation bin close to the bearing seat.

Furthermore, the longitudinal sections of the shell and the isolation bin are circular, the shell and the isolation bin are concentrically arranged, the diameter of the isolation bin is larger than that of the shell, and the central axis of the conveying shaft penetrates through the center of the partition plate.

Furthermore, one side of the partition board, which is close to the helical blade, is provided with a reverse blade, and the rotating direction of the reverse blade is opposite to that of the helical blade.

Further, the reverse vane comprises a small-diameter section vane and a large-diameter section vane, the small-diameter section vane is connected with the spiral vane and is located in the shell, and the large-diameter section vane is connected with the partition plate and is located in the isolation bin.

Furthermore, a discharge outlet is arranged below the isolation bin.

Furthermore, sealing devices are arranged at two ends of the shell and comprise a sealing frame, packing, a gland and a shaft sleeve, the shaft sleeve is sleeved on the conveying shaft, the sealing frame is sleeved on the shaft sleeve, a small flange of the sealing frame is arranged in the inner diameter of the shell, a large flange of the sealing frame is fixed to a connecting plate fixed to the outer wall of the shell, the packing is located between an inner hole of the sealing frame and the shaft sleeve, the gland is sleeved on the shaft sleeve and compresses the packing, and the gland is fixed to the large flange of the sealing frame through bolts.

Further, the bearing frame includes the supporting seat, be equipped with the mounting groove on the supporting seat, carry the axle rotatable locate through the bearing in the mounting groove.

Adopt the beneficial effects of the utility model are that as follows, titanium white powder removes inside the casing, and the both ends of casing are equipped with feed inlet and discharge gate respectively, and the upside of casing is located to the feed inlet, makes things convenient for the material to fall into the casing from the feed inlet, and the discharge gate is located the downside of casing makes things convenient for the material to discharge from the casing. Be equipped with in the casing and carry the axle and fix epaxial helical blade of carrying, the one end of carrying the axle to stretch out the one end of casing is connected with drive arrangement, and the other end stretches out the other end and the bearing frame rotatable coupling of casing, drive arrangement provides power and makes and carry the axle rotatory this moment, fixes and carries epaxial helical blade and rotate thereupon, promotes the material and removes from the feed inlet direction to the discharge gate direction in the casing, and the bearing frame setting is outside at the casing this moment, has avoided parts such as counter shaft, bearing in the material entering into the bearing frame in the casing to cause the damage. The shell is provided with an isolation bin protruding out of the shell, the isolation bin is located between the discharge port and the bearing seat, at the moment, when the materials move to the discharge port, most of the materials are discharged from the discharge port, and a small part of the materials are left in the shell. The separation bin is rotatably provided with a partition plate, the partition plate is fixed on the conveying shaft, and the outer edge of the partition plate extends into the separation bin. When the materials are transported, the partition plates can separate the materials, and most of the materials which are not discharged fall into the bottom of the separation bin. Because the isolation bin protrudes out of the shell, namely the horizontal position of the bottom of the isolation bin is lower than that of the bottom of the shell, the possibility that materials falling on the bottom of the isolation bin flow back into the shell around the partition plate and leak out of the end of the shell is reduced. And at the moment, one side of the partition board, which is far away from the spiral blade, is provided with a plurality of annular bulges, the inner side wall of the isolation bin, which is close to the bearing seat, is provided with a plurality of annular chutes matched with the annular bulges, the annular bulges are matched with the annular chutes to form a multi-bending separation path, and a small amount of materials passing through the partition board are separated from leaking from the joint of the shell and the conveying shaft. Adopt the utility model discloses, with the bearing frame setting outside the casing, can avoid when transporting the material, the material gets into parts such as counter shaft, bearing in the bearing frame through the clearance of each part and causes the damage, aggravation rate of wear to through the cooperation between separation storehouse and the baffle, make the material in the casing can't cross the baffle in the transportation and spill from the casing with the junction of carrying the axle, optimized the production environment of titanium white powder.

The invention will be further explained with reference to the drawings and the specific embodiments.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is an enlarged detail view of a in fig. 1.

In the drawings: 100-shell, 101-feed inlet, 102-discharge outlet, 103-connecting plate, 200-conveying shaft, 201-helical blade, 300-driving device, 400-bearing seat, 401-supporting seat, 402-mounting groove, 403-bearing, 500-isolation bin, 501-baffle, 5011-annular protrusion, 502-annular chute, 503-discharge outlet, 600-reverse blade, 601-small diameter section blade, 602-large diameter section blade, 700-sealing device, 701-sealing frame, 702-filler, 703-gland and 704-shaft sleeve.

Detailed Description

Specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Referring to fig. 1 to 2, the utility model provides a screw conveyer with axle head seal structure, include: the material inlet device comprises a shell 100, wherein a material inlet 101 and a material outlet 102 are respectively arranged at two ends of the shell 100, and the material inlet 101 is positioned at the upper side of the shell 100, so that materials can conveniently enter the shell 100; the discharge port 102 is located at the lower side of the casing 100, so that materials can be conveniently discharged from the casing 100, the conveying shaft 200 and the helical blade 201 fixed on the conveying shaft 200 are arranged in the casing 100, two ends of the conveying shaft 200 respectively extend out of the casing 100 and are rotatably connected with the bearing seat 400, one end of the conveying shaft passes through the bearing seat 400 and is connected with the output end of the driving device 300, and at the moment, the bearing seat 400 is arranged outside the casing 100, so that the materials in the casing 100 can be prevented from entering the bearing seat 400 to cause abrasion or damage to parts such as shafts, bearings and the like. The conveying shaft 200 is driven by the driving device 300 to rotate, so as to drive the helical blade 201 to rotate to convey the material from the feed port 101 end to the discharge port 102 end, and at this time, the driving device 300 can select a rotating motor. The shell 100 is provided with an isolation bin 500 protruding from the shell 100, preferably, the longitudinal sections of the shell 100 and the isolation bin 500 are circular, the shell 100 and the isolation bin 500 are concentrically arranged, and the diameter of the isolation bin 500 is larger than that of the shell 100. At this time, the partition 501 can be conveniently and rotatably disposed in the isolation bin 500, and when the outer edge of the partition 501 extends into the isolation bin 500, the side wall of the isolation bin 500 can be provided with an annular chute 502 which is matched with the annular protrusion 5011 disposed on the partition 501. The separation bin 500 is located between the discharge port 102 and the bearing seat 400, a partition plate 501 is rotatably arranged in the separation bin 500, the partition plate 501 is fixed on the conveying shaft 200, and the outer edge of the partition plate 501 extends into the separation bin 500. Preferably, the central axis of the conveying shaft 200 passes through the center of the partition 501, and when the conveying shaft 200 rotates, the partition 501 is driven to rotate stably. When the materials are transported, most of the materials are discharged from the discharge port 102, and the partition plate 501 plays a role in blocking the materials, so that the materials left in the casing 100 fall into the bottom of the isolation bin 500. The isolation bin 500 protrudes out of the casing 100, so that the material falling into the bottom of the isolation bin 500 can be prevented from flowing back into the casing 100 by bypassing the partition plate 501, and further moving to the joint of the conveying shaft 200 and the casing 100 and leaking out of the end of the casing 100. Preferably, a discharge opening 503 is arranged below the isolation bin 500, and the material falling into the bottom of the isolation bin 500 can be discharged from the discharge opening 503. One side of the partition plate 501, which is far away from the helical blade 201, is provided with a plurality of annular protrusions 5011, the inner side wall of the separation bin 500, which is close to the bearing block 400, is provided with a plurality of annular chutes 502 which are matched with the annular protrusions 5011, at this time, the annular protrusions 5011 are matched with the annular chutes 502 to form a multi-bend separation path, so that a further separation effect is exerted on the material, and the material is prevented from bypassing the partition plate 501 and leaking from the joint of the casing 100 and the conveying shaft 200.

Further, a reverse vane 600 is disposed on one side of the partition 501 close to the spiral vane 201, and the rotation direction of the reverse vane 600 is opposite to the rotation direction of the spiral vane 201. At this time, the discharge port 102 should be disposed at the junction of the reverse vane 600 and the spiral vane 201 to facilitate the discharge of the material from the casing 100. The reversing vanes 600 now convey the material back, thereby ensuring that material not discharged from the discharge opening 102 is not transported to the connection of the conveying shaft 200 and the housing 100. The reverse vane 600 includes a small-diameter vane 601 and a large-diameter vane 602, the small-diameter vane 601 is connected to the spiral vane 201 and is located in the casing 100, and the large-diameter vane 602 is connected to the partition 501 and is located in the separation bin 500. When the material which is not discharged from the discharge port 102 passes through the small-diameter section blade 601, the material is pulled back to the discharge port 102 by the small-diameter section blade 601 and is discharged from the discharge port 102, and when a small amount of material continues to move to the separation bin 500 along the conveying direction of the helical blade 201, the material does not continue to move in the conveying direction of the helical blade 201 under the action of the large-diameter section blade 602, and falls into the bottom of the separation bin 500 and is discharged from the discharge port 503.

Further, sealing devices 700 are disposed at two ends of the housing 100 to seal the connection between the housing 100 and the conveying shaft 200. The sealing device 700 may adopt the existing sealing technology, for example, the sealing device 700 includes a sealing frame 701, a packing 702, a gland 703 and a shaft sleeve 704, the shaft sleeve 704 is sleeved on the conveying shaft 200, the sealing frame 701 is sleeved on the shaft sleeve 704, a small flange of the sealing frame 701 is installed in the inner diameter of the casing 100 to preliminarily seal the end of the casing 100, a large flange of the sealing frame 701 is fixed with a connecting plate 103 fixed on the outer wall of the casing 100, and the sealing frame 701 is fixedly connected with the casing 100. The packing 702 is located between the inner hole of the seal holder 701 and the shaft sleeve 704, and fills a gap between the seal holder 701 and the shaft sleeve 704, the gland 703 is sleeved on the shaft sleeve 704 and compresses the packing 702, so that the packing 702 seals the gap between the seal holder 701 and the shaft sleeve 704, and the gland 703 and a large flange of the seal holder 701 are fixed through bolts.

Bearing housing 400 may also support conveyor shaft 200 using existing bearing housing 400. For example, the bearing seat 400 includes a supporting seat 401, a mounting groove 402 is provided on the supporting seat 401, the delivery shaft 200 is rotatably disposed in the mounting groove 402 through a bearing 403, and a bearing 403 sleeve may be further provided on the delivery shaft 200 to increase the service life of the bearing seat 400.

Adopt the utility model discloses, the material gets into in casing 100 from feed inlet 101, make the material remove to discharge gate 102 direction under helical blade 201's effect, discharge from discharge gate 102 when the material removes to material mouth 102, small part of material still can leave over in casing 100 to separation storehouse 500 direction removal this moment, in the removal process, path section blade 601 pushes back the material of leaving over to discharge gate 102 and discharges from discharge gate 102, and the material that continues to move separation storehouse 500 is under the effect of big diameter section blade 602 and baffle 501, the bottom that falls separation storehouse 500 is discharged from bin outlet 503, and the tiny particle in the casing 100 this moment, the dust etc. also can't cross baffle 501 under the effect of baffle 501 and remove to the junction of carrying axle 200 with casing 100. The bearing seat 400 is arranged outside the shell 100, so that the situation that materials enter the bearing seat 400 through gaps of all parts to damage parts such as a shaft, a bearing 403 and the like to increase the abrasion speed when the materials are transported can be avoided; and the utility model discloses a setting of separation storehouse 500 and reverse vane 600 isotructure makes the material in the casing 100 can't cross baffle 501 and spill from casing 100 and the junction of carrying axle 200 in the transportation, has optimized the production environment of titanium white powder.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. A screw conveyor having a shaft end seal structure, comprising: the device comprises a shell (100), wherein a feed inlet (101) and a discharge outlet (102) are respectively arranged at two ends of the shell (100), the feed inlet (101) is positioned at the upper side of the shell (100), the discharge outlet (102) is positioned at the lower side of the shell (100), a conveying shaft (200) and a spiral blade (201) fixed on the conveying shaft (200) are arranged in the shell (100), two ends of the conveying shaft (200) respectively extend out of the shell (100) to be rotatably connected with a bearing seat (400), one end of the conveying shaft penetrates through the bearing seat (400) to be connected with the output end of a driving device (300), an isolation bin (500) protruding out of the shell (100) is arranged on the shell (100), the isolation bin (500) is positioned between the discharge outlet (102) and the bearing seat (400), and a partition plate (501) is rotatably arranged in the isolation bin (500), the separating plate (501) is fixed on the conveying shaft (200), a plurality of annular protrusions (5011) are arranged on one side, far away from the spiral blades (201), of the separating plate (501), and a plurality of annular sliding grooves (502) matched with the annular protrusions (5011) are formed in the inner side wall, close to the bearing seat (400), of the separating bin (500).

2. The screw conveying device with the shaft end sealing structure is characterized in that the longitudinal sections of the shell (100) and the isolation bin (500) are circular, the shell (100) and the isolation bin (500) are concentrically arranged, and the central axis of the conveying shaft (200) penetrates through the center of the partition plate (501).

3. The screw conveyor with the shaft end sealing structure according to claim 1, wherein the partition (501) is provided with a counter vane (600) on a side close to the screw blade (201), and a rotation direction of the counter vane (600) is opposite to a rotation direction of the screw blade (201).

4. The screw conveyor with the shaft end sealing structure is characterized in that the reversing blade (600) comprises a small-diameter blade (601) and a large-diameter blade (602), the small-diameter blade (601) is connected with the screw blade (201) and is positioned in the shell (100), and the large-diameter blade (602) is connected with the partition plate (501) and is positioned in the isolation bin (500).

5. The screw conveyer with the shaft end sealing structure as recited in claim 1, wherein a discharge opening (503) is provided below the isolation bin (500).

6. The screw conveyor with an axial end seal structure according to claim 1, two ends of the shell (100) are provided with sealing devices (700), each sealing device (700) comprises a sealing frame (701), a packing (702), a gland (703) and a shaft sleeve (704), the shaft sleeve (704) is sleeved on the conveying shaft (200), the sealing frame (701) is sleeved on the shaft sleeve (704), the small flange of the sealing frame (701) is arranged in the inner diameter of the shell (100), the large flange of the sealing frame (701) is fixed with a connecting plate (103) fixed on the outer wall of the shell (100), the packing (702) is positioned between the inner hole of the seal frame (701) and the shaft sleeve (704), the gland (703) is sleeved on the shaft sleeve (704) and compresses the packing (702), the gland (703) and the large flange of the sealing frame (701) are fixed through bolts.

7. The screw conveyor with shaft end sealing structure according to claim 1, wherein the bearing seat (400) comprises a supporting seat (401), a mounting groove (402) is formed on the supporting seat (401), and the conveying shaft (200) is rotatably disposed in the mounting groove (402) through a bearing (403).

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