CN114044312A

CN114044312A - Double-chain anti-floating self-cleaning scraper chain

Info

Publication number: CN114044312A
Application number: CN202111333569.6A
Authority: CN
Inventors: 龚学林; 邹吉慧
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-11
Filing date: 2021-11-11
Publication date: 2022-02-15

Abstract

The invention relates to a double-chain anti-floating self-cleaning scraper chain, which comprises an annular double chain consisting of a plurality of chain rods, wherein every two adjacent chain rods in front and back are connected through a pin shaft; c-type, B-type and A-type scrapers are arranged on the annular double chains, and the C-type, B-type and A-type scrapers are respectively fixed on different chain rods; the C-shaped scraper inclines towards the running direction; the left side, the lower side and the right side of the B-shaped scraper are respectively provided with a left tooth, a bottom tooth and a right tooth of a B plate; the left side, the lower side and the right side of the A-type scraper are respectively provided with a left plate tooth, a bottom tooth and a right tooth, and the left plate tooth, the bottom tooth and the right plate tooth of the B plate are respectively staggered with the left plate tooth, the bottom tooth and the right plate tooth of the A plate. The double-chain is prevented floating and is cleaned scattered material, prevent to float the chain from transmitting through C type scraper blade from cleaning the scraper blade chain, through setting up B type and A type scraper blade and transmitting scattered material, clearance long-pending material, reinforcing and prevent to float the chain, sets up crisscross tooth on B type and the A type scraper blade, clearance material that can zero clearance.

Description

Double-chain anti-floating self-cleaning scraper chain

Technical Field

The invention relates to bulk material conveying equipment, in particular to a double-chain anti-floating self-cleaning scraper chain.

Background

The embedded scraper conveyor conveys materials in a closed machine groove, can be sealed, dustproof, waterproof, gas-proof and explosion-proof, greatly improves the labor condition, prevents environmental pollution and has good sealing performance; the process arrangement is very flexible, and multi-point feeding or multi-point discharging can be realized; the volume is small, the occupied area is small, and the device can be used in a narrow working place; easy installation, convenient operation and maintenance, and safe and reliable operation. The method is widely applied to various industries such as thermal power, metallurgy, chemical industry, building materials, grease, ports, paper industry, renewable resource recycling and the like.

In the domestic metallurgical industry, buried scraper conveyors are commonly used under waste heat boilers or electric dust collectors, but materials with large volume weight such as lead ash slag are conveyed and are subjected to moisture caking and adhered to a bottom plate and a side plate of a machine shell, so that a scraper chain floats and scrapers deform, and blockage is caused. The working conditions of fertilizer conveying in a fertilizer plant, alkali ash conveying under an alkali recovery boiler in a paper mill, lead ash conveying in lead regeneration and recycling and the like all have the defects of large temperature difference inside and outside the embedded scraper conveyor, easy moisture absorption and caking of materials, adhesion to a bottom plate and a side plate of a machine shell, generation of floating chains and bending deformation of scrapers, equipment failure of the conveyor, high difficulty in fault repair and high operation cost. And the scraper chain is the traction and material conveying part of the buried scraper conveyor. In general, an embedded scraper conveyor conveys bulk materials in a closed casing, a bearing cavity is arranged at the lower part of the casing, and scraper chains run on a bottom plate or a bottom plate wear-resistant guide rail. The no-load cavity is arranged at the upper part of the machine shell, and the middle part of the no-load cavity is provided with a chain return wear-resistant guide rail.

Disclosure of Invention

Based on the expression, the invention provides a double-chain anti-floating self-cleaning scraper chain, which aims to solve the problems of easy material accumulation, caking and chain floating in the conventional equipment.

The technical scheme for solving the technical problems is as follows:

a double-chain anti-floating self-cleaning scraper chain comprises an annular double-row chain consisting of a plurality of chain rods, wherein every two adjacent chain rods in front and back are connected through a pin shaft; the annular double chains are provided with a C-shaped scraper, a B-shaped scraper and an A-shaped scraper which are respectively fixed on different chain rods; the C-shaped scraper inclines towards the running direction; the left side, the lower side and the right side of the B-shaped scraper are respectively provided with a B plate left tooth, a B plate bottom tooth and a B plate right tooth; the left side, the lower side and the right side of the A-type scraper are respectively provided with a plate A left tooth, a plate A bottom tooth and a plate A right tooth, and the plate B left tooth, the plate B bottom tooth and the plate B right tooth are respectively staggered with the plate A left tooth, the plate A bottom tooth and the plate A right tooth. The double-chain anti-floating self-cleaning scraper chain transmits and cleans bulk materials and prevents floating through the C-shaped scraper. Through setting up B type scraper blade and A type scraper blade to transmit the bulk material, reinforcing prevents floating chain, clearance long-pending material.

Preferably, a C-shaped scraper blade is fixed on every 0 group or 1 group or 2 groups of chain rods on the double-row chain. Through setting up the interval of every two C type scraper blades, when increasing conveying efficiency, the weight of discrete material in two C type scraper blades is properly controlled, avoids transshipping and increases long-pending material or stifle car.

Preferably, one B-type scraper and one A-type scraper form a group of cleaning groups, and one or more groups of cleaning groups are arranged on the double-row chain. Through setting up the multiunit and cleaning the group, strengthen and clean the effect, reduce the emergence of bonding, long-pending material.

Preferably, the height of the C-shaped scraper is the same as that of the B-shaped scraper and the A-shaped scraper, and the C-shaped scraper and the A-shaped scraper are both high scrapers, and the chain rod is supported away from being in contact with the bottom plate. The C-type scraper blade is mainly used for conveying and cleaning bulk materials and preventing floating, and the B-type scraper blade and the A-type scraper blade are mainly used for cleaning accumulated materials, conveying bulk materials and enhancing the prevention of floating.

Preferably, the C-shaped scraper blade inclines towards the running direction. The C-shaped scraper inclines at an angle towards the running direction, so that on one hand, floating chains are prevented, scattered materials are conveyed, and accumulated materials are prevented from being compacted; on the other hand, the bonded accumulated materials can be better removed.

Preferably, the B-type flight and the A-type flight are perpendicular to the flight chain running direction or inclined to the running direction. The A-type scraper is installed like a B-type scraper, and inclines at an angle towards the moving direction, so that on one hand, floating chains are prevented, scattered materials are conveyed, and accumulated materials are prevented from being compacted; on the other hand, the bonded accumulated materials can be better removed. Avoid the chain pole and the unable material of scraping the adhesion of shoveling of the contact surface of wear-resisting guide rail or bottom plate, extrude, the compaction with the partial material of adhesion on guide rail surface or bottom plate even, lead to the material of adhesion to be thicker and thicker, extrude harder more, get up whole scraper chain pad gradually and raise, cause the floating chain.

Preferably, the C-shaped scraper, the B-shaped scraper and the A-shaped scraper can adopt materials for preventing materials from being bonded. When bulk materials are pushed, the scraper chain can be prevented from being stuck, and the load of the chain is avoided being increased.

Preferably, the C-type scraper, the B-type scraper and the A-type scraper can be made of stainless steel materials. When bulk materials are pushed, the scraper chain can be prevented from being stuck, and the load of the chain is avoided being increased.

Preferably, the widths of tooth spaces among the bottom teeth, the left teeth and the right teeth of the B plate are the same as those of the tooth spaces among the bottom teeth, the left teeth and the right teeth of the A plate, and the widths of tooth spaces among the bottom teeth, the left teeth and the right teeth of the B plate are the same as those of the bottom teeth, the left teeth and the right teeth of the A plate. Setting the distance between the two teeth to be L, wherein the widths of the bottom teeth, the left teeth, the right teeth and the tooth grooves of the A plate of the A-type scraper blade can be L/2, L/3 and L/4; the widths of the bottom teeth, the left teeth, the right teeth and the tooth grooves of the B plate of the B-type scraper blade can be L/2, L/3 and L/4. The cleaning tooth surface of each assembly unit can be ensured to be contacted with the bottom plate, the left side plate and the right side plate without clearance during wide operation, and gapless scraping and cleaning are realized.

Compared with the prior art, the technical scheme of the application has the following beneficial technical effects: the application relates to a double-chain floating-prevention self-cleaning scraper chain, which can be used for simultaneously cleaning a bottom plate and preventing floating chains when bulk materials are conveyed through a C-shaped scraper, wherein the C-shaped scraper, a B-shaped scraper and an A-shaped scraper can be made of materials for preventing bonding materials such as stainless steel, and the blockage of adhesion and material accumulation and discharging of the scraper chain is avoided. Through set up A type scraper blade and B type scraper blade clearance assembly on the chain, can be when the conveying material, automatic clearance bottom plate with control the curb plate, can strengthen when B type scraper blade, A type scraper blade slope are arranged and prevent to float the chain effect, through set up crisscross end tooth, left tooth, right tooth on A type scraper blade and B type scraper blade, long-pending material of caking adhesion on the efficient clearance bottom plate that can be zero clearance and the curb plate of controlling.

Drawings

FIG. 1 is a top view of a scraper chain in accordance with an embodiment of the present invention;

FIG. 2 is a front view of a scraper chain in accordance with an embodiment of the present invention;

FIG. 3 is a front view of a second embodiment of a scraper chain in accordance with an example of the present invention;

FIG. 4 is a view A-A of FIG. 2;

FIG. 5 is a view B-B of FIG. 2;

FIG. 6 is a view C-C of FIG. 2;

in the drawings, the components represented by the respective reference numerals are listed below:

1. a chain bar; 2. a pin shaft; 3. a C-shaped scraper; 4. a B-type scraper; 5. a type A scraper; 6. a side plate; 8. a base plate; 9. a cover plate; 41. b, bottom teeth of the plate; 42. b, left teeth of the plate; 43. b, right teeth of the plate; 51. a, plate bottom teeth; 52. a, plate left teeth; 53. and A plate right tooth.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are set forth in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

In this embodiment, as shown in fig. 1, 2, 4, and 5. A double-chain anti-floating self-cleaning scraper chain comprises an annular double-row chain consisting of a plurality of chain rods 1, wherein every two adjacent chain rods 1 in front and back are connected through a pin shaft 2; the annular double-row chain is provided with a C-shaped scraper plate 3, a B-shaped scraper plate 4 and an A-shaped scraper plate 5, and the C-shaped scraper plate 3, the B-shaped scraper plate 4 and the A-shaped scraper plate 5 are respectively fixed on different chain rods 1; the C-shaped scraper 3 inclines towards the running direction; the left side, the lower side and the right side of the B-shaped scraper 4 are respectively provided with a B plate left tooth 42, a B plate bottom tooth 41 and a B plate right tooth 43; the left side, the lower side and the right side of the A-type scraper 5 are respectively provided with an A plate left tooth 52, an A plate bottom tooth 51 and an A plate right tooth 53, and the B plate left tooth 42, the B plate bottom tooth 41 and the B plate right tooth 43 are respectively staggered with the A plate left tooth 52, the A plate bottom tooth 51 and the A plate right tooth 53. The double-chain floating-prevention self-cleaning scraper chain is mainly used for the buried scraper conveyor, and is arranged in a closed machine groove of the buried scraper conveyor. The machine groove is formed by fixing a side plate 6, a bottom plate 8 and a cover plate 9 respectively. In the working state, the C-type scraper 3, the B-type scraper 4 and the A-type scraper 5 are in contact with a bottom plate 8 in the machine groove. The C-shaped scraper 3 is used for conveying and cleaning the bulk material and preventing floating chain. When high-temperature materials are conveyed, the temperature difference between the internal temperature of the machine shell and the external environment temperature is large, the inner wall of the machine shell generates a condensation phenomenon, and the materials are easy to adhere to the bottom plate 8 and the side plates 6 of the machine shell to generate a caking phenomenon after moisture absorption. In particular such as: alkali ash, fertilizer and similar materials that easily absorb moisture, the continuous scraping and the extrusion of scraper chain are followed in the transportation process, and the adhesion caking can be thicker and thicker, become harder more and harder, constantly extrudees the space of scraper chain, causes float chain, scraper blade deformation, putty stifled car equipment accident. And similar materials such as lead ash, lead recycling resources and the like are heavy and are easy to absorb moisture and agglomerate, so that the equipment accidents are more easily caused. The accumulated materials adhered and agglomerated are cleaned and the floating chain preventing effect is enhanced while the dispersed material materials are conveyed by arranging the B-type scraper 4 and the A-type scraper 5.

The double-chain anti-floating self-cleaning scraper chain consists of double rows of chains, and every two parallel connecting rods 1 correspond to each other. A group of C-shaped scrapers 3 are arranged on every 0 group or 1 group or 2 groups of connecting rods 1, and two ends of the C-shaped scrapers 3 are respectively fixed on two parallel connecting rods 1. On the whole annular double-row chain, a group of B-type scrapers 4 and A-type scrapers 5 replace the C-type scrapers 3 at two adjacent positions. Two sets of B-type flights 4 and a-type flights 5 may also be provided.

The C-shaped scraper 3 is used for transmitting and cleaning bulk materials, and inclines the C-shaped scraper 3 forward by an angle, so that the transmission of the bulk materials and the floating chain prevention are facilitated, and in addition, the C-shaped scraper 3 can be prevented from pressing the accumulated materials to be firm when the materials are transmitted, a certain effect of scraping and cleaning the accumulated materials is also achieved, and the problem that the C-shaped scraper 3 passes through the top of the accumulated materials to cause the floating chain is avoided.

The left side, the lower side and the right side of the B-shaped scraper 4 are designed into tooth shapes, so that accumulated materials adhered to the lumps can be conveniently cleaned, and the left side, the lower side and the right side of the A-shaped scraper 5 are designed into tooth shapes, so that accumulated materials can be further conveniently cleaned by adhering the lumps. Wherein, the left tooth 42 of the B plate is staggered with the left tooth 52 of the A plate, namely, the left tooth 42 of the B-shaped scraper corresponds to the tooth socket at the left side of the A-shaped scraper 52. The B-blade right tooth 43 is offset from the A-blade right tooth 53, i.e., the B-blade right tooth 43 corresponds to the gullet on the right side of the A-blade. The bottom teeth 51 of the A plate below the A-type scraper 5 are staggered with the bottom teeth 41 of the B plate below the B-type scraper 4, namely, the bottom teeth 51 of the A plate below the A-type scraper 5 correspond to tooth grooves below the B-type scraper 4. The accumulated materials on the bottom plate 8 of the conveyor can be scraped without clearance through the mutually staggered scraping teeth of the B-shaped scraper 4 and the A-shaped scraper 5.

In this embodiment, as shown in fig. 1 and 2. And a C-shaped scraper 3 is fixed on every 0 group or 1 group or 2 groups of chain rods 1 on the double chain. According to the pitch size of the chain rods 1, the welding of one C-shaped scraper 3 at intervals of several chain rods 1 is determined. The C-shaped scraper 3 is mainly used for conveying and cleaning discrete materials and preventing floating chains. For the chain rods 1 with small pitch, a plurality of groups of chain rods 1 can be spaced, so that a space with a proper distance is formed between the front and rear C-shaped scrapers 3, and the requirement of the technical condition for conveying materials is met. The C-shaped scraper 3, the B-shaped scraper 4 and the A-shaped scraper 5 can be made of materials such as stainless steel and the like which can prevent materials from adhering to the scraper chain, can prevent the scraper chain from adhering to the materials, increase the load of the chain and prevent unsmooth discharging when bulk materials are pushed.

In this embodiment, as shown in fig. 6. The B-type scraper 4 and the A-type scraper 5 form a group of cleaning groups, and one or more groups of cleaning groups are arranged on the double chains. The B-type scraper 4 and the A-type scraper 5 are used in a matching way and are arranged adjacently. Instead of welding the C-blade 3, a chain bar 1 of the B-blade 4 and the a-blade 5 is provided. For long buried scraper conveyors and relatively viscous bulk materials, a plurality of groups of cleaning groups can be arranged, so that the occurrence of material accumulation is reduced. The cleaning groups are evenly arranged on the annular double-row chain at intervals. The C-shaped scraper 3 has the same height as the B-shaped scraper 4 and the A-shaped scraper 5. The B-type scraper 4 and the A-type scraper 5 are mainly used for cleaning accumulated materials while conveying the materials.

In this embodiment, as shown in fig. 3. The B-shaped scraper 4 inclines towards the moving direction. The B-shaped scraper 4 inclines to an angle towards the running direction, so that on one hand, floating chains are prevented while materials are conveyed and cleaned, and accumulated materials are prevented from being compacted; on the other hand, the bonded accumulated materials can be better removed. The A-shaped scraper 5 inclines towards the running direction. The A-type scraper 5 is installed like the B-type scraper 4 and inclines at an angle towards the running direction, so that on one hand, floating chains are prevented while materials are conveyed and cleaned, and accumulated materials are prevented from being compacted; on the other hand, the bonded accumulated materials can be better removed. A. B, C type scraper blade is high scraper blade, raises the chain pole, avoids the chain pole and can't shovel the material of scraping the adhesion with wear-resisting guide rail or bottom plate contact, extrudees, the compaction with the partial material of adhesion on guide rail surface or bottom plate even, leads to the material of adhesion to be thicker and thicker, extrude harder more, gets up whole scraper blade chain pad gradually and raises, causes the floating chain.

In this embodiment, as shown in fig. 4 and 5. The tooth space width between the B plate bottom teeth 41 and the A plate bottom teeth 51 is the same, and the tooth space between the B plate bottom teeth 41 and the A plate bottom teeth 51 are the same. The tooth space width between the B plate left tooth 42 and the A plate left tooth 52 is the same, and the tooth space between the B plate left tooth 42 and the A plate left tooth 52 are the same. The tooth space between the B plate right tooth 43 and the A plate right tooth 53 is the same in width, and the tooth space between the B plate right tooth 43 and the A plate right tooth 53 is the same in width. Setting the distance between the two teeth to be L, the widths of the bottom teeth 51, the left teeth 52, the right teeth 53 and the tooth groove of the A-shaped scraper 5 can be L/2, L/3 and L/4; the widths of the bottom teeth 41, the left teeth 42, the right teeth 43 and the tooth grooves of the B-shaped scrapers 4 can be L/2, L/3 and L/4. The cleaning tooth surface of each assembly unit can be ensured to be in gapless contact with the bottom plate and the left and right side plates when in wide operation, and gapless scraping and cleaning are realized.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A double-chain anti-floating self-cleaning scraper chain is characterized by comprising an annular double-row chain consisting of a plurality of chain rods (1), wherein every two adjacent chain rods (1) in front and back are connected through a pin shaft (2); the annular double-row chain is provided with a C-shaped scraper (3), a B-shaped scraper (4) and an A-shaped scraper (5), and the C-shaped scraper (3), the B-shaped scraper (4) and the A-shaped scraper (5) are respectively fixed on different chain rods (1); the C-shaped scraper (3) inclines towards the running direction; the left side, the lower side and the right side of the B-shaped scraper (4) are respectively provided with a B plate left tooth (42), a B plate bottom tooth (41) and a B plate right tooth (43); the left side, the lower side and the right side of the A-type scraper (5) are respectively provided with a plate A left tooth (52), a plate A bottom tooth (51) and a plate A right tooth (53), and the plate B left tooth (42), the plate B bottom tooth (41) and the plate B right tooth (43) are respectively arranged in a staggered manner relative to the plate A left tooth (52), the plate A bottom tooth (51) and the plate A right tooth (53).

2. The double-chain anti-drift self-cleaning scraper chain according to claim 1, characterized in that every 0 or 1 or 2 sets of chain bars (1) are fixed with a C-shaped scraper (3).

3. A double-chain anti-drift self-cleaning scraper chain according to claim 1 or 2, characterized in that one B-type scraper (4) and one a-type scraper (5) form a cleaning group, and one or more cleaning groups are arranged on the double-row chain.

4. The double-chain anti-drift self-cleaning scraper chain according to claim 1 or 2, characterized in that the C-shaped scraper (3) has the same height as the B-shaped scraper (4) and the A-shaped scraper (5), and is a high scraper.

5. A double-stranded anti-drift self-cleaning scraper chain according to claim 1 or 2, characterized in that the C-shaped scraper (3) is inclined towards the direction of movement.

6. The double-chain anti-drift self-cleaning scraper chain according to claim 5, characterized in that the B-type scraper (4) and the A-type scraper (5) are perpendicular to the running direction of the scraper chain or inclined to the running direction.

7. The double-chain anti-drift self-cleaning scraper chain according to claim 1, characterized in that the C-type scraper (3), the B-type scraper (4) and the A-type scraper (5) are made of materials for preventing materials from being bonded.

8. The double-chain anti-drift self-cleaning scraper chain according to claim 7, characterized in that the C-type scraper (3), the B-type scraper (4) and the A-type scraper (5) are made of stainless steel.

9. The double-chain anti-drift self-cleaning scraper chain according to claim 1, characterized in that the width of the tooth spaces between the bottom teeth (41) of the B board and the bottom teeth (51) of the A board is the same, and the width of the tooth spaces between the bottom teeth (41) of the B board and the bottom teeth (51) of the A board is the same; the tooth space width between the left tooth (42) of the plate B and the left tooth (52) of the plate A is the same, and the tooth space between the left tooth (42) of the plate B and the left tooth (52) of the plate A are the same; the tooth space width between the B plate right tooth (43) and the A plate right tooth (53) is the same, and the tooth space between the B plate right tooth (43) and the A plate right tooth (53) are the same.