CN103624691A

CN103624691A - Equipment and method for derusting and cleaning acid-free steel strip

Info

Publication number: CN103624691A
Application number: CN201310612675.7A
Authority: CN
Inventors: 赵永茂
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-11-28
Filing date: 2013-11-28
Publication date: 2014-03-12
Anticipated expiration: 2033-11-28
Also published as: CN103624691B

Abstract

The invention discloses equipment and a method for derusting and cleaning an acid-free steel strip. The equipment comprises an upper plate rack (17), a lower plate rack (18) and a steel strip (2), and is characterized in that the steel strip (2) bears the pressure of sand columns inside a sand box (5) inside the sand box (5); circulation scrapers (6) have the clamping and friction function; the steel strip (2) is abraded by a plurality groups of circulation scrapers (6), so as to remove the oxidized surface and rust on the steel strip (2). The plurality of groups of circulation scrapers (6) are arranged inside the sand box (5), each group of the circulation scrapers (6) consists of two rubber plates (22), and a plurality of sand running grooves are formed in each rubber plate (22). The equipment and the method have the beneficial effect that the cleaning is accomplished through the grinding function generated from running velocity difference of the grinding sand and the steel strip. The equipment and the method are free of pollution, zero emission is achieved, the production cost is lowered, expense in building sewage treatment plants and treatment expense are saved for the country, and a great deal of factory land is saved.

Description

A kind of anacidity steel band derust cleaning equipment and method

Technical field

The present invention relates to a kind of anacidity steel band derust cleaning equipment and method, belong to the technical field of steel plate or cleaning steel aspect.

Background technology

At present, known technology, as Chinese invention patent, the patent No. is: 201110363729.1, a kind of steel band pickling rust-proofing method is disclosed, it is through following steps roughly: a kind of steel band pickling rust-proofing method, its step is as follows: a, draw material; B, removal oxidation shell, remove the most of oxide skin on steel band by decorticator; C, pickling, put into acid tank by the steel band of removing after oxidation shell; D, washing; E, polishing, carry out polishing by polishing machine to steel band; F, secondary washing, to remain in the spot on steel band after removing polishing; G, neutralizing acid; H, three washings; 1, nitrous is processed; M, rewinding.Its drawback is: 1. a large amount of spent acid; 2. the water of the method after three washings all contains acid, and these wastewater and waste acid all can not reach national pollution emission standard, and permeate the ground; 3. the wastewater and waste acid permeating the ground has caused serious destruction to groundwater resources, has affected people's life and life; 4. the method adopts chemical reaction method to process.

Summary of the invention

The deficiency existing for the problems referred to above, the object of this invention is to provide a kind of anacidity steel band derust cleaning equipment and method.

A kind of anacidity steel band derust cleaning equipment and method, comprise, loading frame (17) and lower grillage (18) and steel band (2), it is characterized in that: steel band (2) bears the pressure of sand post in sandbox (5) in sandbox (5), the strigil (6) that makes to circulate produces and clamps rubbing action, through too much organizing circulation strigil (6), steel band (2) is rubbed, thereby remove oxide skin and the iron rust on steel band (2).

In sandbox (5), be provided with many group circulation strigils (6), every group of circulation strigil (6) is comprised of two rubber slabs (22), is provided with many and walks sand groove on each rubber slab (22).

The described sand groove of walking, middle part is main flow sand launder (24), the abrasive sand in sandbox (5) is in main flow sand launder (24) is diverted to a plurality of oblique grooves (23).

In sandbox (5), be provided with retort stand (27), on retort stand (27), be provided with groove, rubber slab (22) is installed in groove.

Described abrasive sand, comprises, corundum, diamantane sand, brown diamond spar sand, diamond sand, common river sand.

In one end of loading frame (17), be provided with discharger (20), the other end is provided with line shaft (16), on the loading frame (17) between discharger (20) and line shaft (16), be provided with a plurality of live roll supports (19), power top roll (10) and power lower roll (11) are installed on live roll support (19).

Below loading frame (17), be provided with pond (25), by high-pressure pump, the water (26) in pond (25) is squeezed in high pressure flash chamber (9) and by a plurality of shower nozzles in high pressure flash chamber (9), steel band (2) is carried out washing in high pressure, then water flows in sandbox (5) by tank, then after the sand in sandbox (5) filters, enters in the pond below sandbox (5).

Steel band (2) leans on the traction of power top roll (10) and power lower roll (11) through shelling roll (3), guide roller A (4) enters in sandbox (5), through guide roller B (7), guide roller C (8) enters high pressure flash chamber (9) and carries out a water flushing, send into guide roller D (12), traction by another power top roll (10) and power lower roll (11) enters in another sandbox (5), circulation strigil (6) in sandbox (5) drives abrasive sand to flow, refine with steel band (2) secondary, then through guide roller E (13), guide roller F (14) enters in high pressure flash chamber (9), carry out intermediate water flushing, lean on line shaft (16) steel band (2) harvest steel coil strip (15).

In order to prevent that steel band (2) from getting rusty again, carries out nitrous processing (21) before rolling work.

The invention has the beneficial effects as follows, thereby complete cleaning by the poor generation mill of the flowing velocity pin effect of abrasive sand and steel band.The present invention is pollution-free, and zero-emission has reduced production cost, has saved expense and the disposal cost of setting up sewage treatment plant to country, has saved a large amount of factory sites.

Accompanying drawing explanation

Fig. 1 is the process flow diagram of invention;

Fig. 2 is circulation strigil of the present invention (6) structural representation;

Fig. 3 is rubber slab of the present invention (22) structural representation.

In figure: steel coil strip 1, steel band 2, shelling roll 3, guide roller A4, sandbox 5, circulation strigil 6, guide roller B7, guide roller C8, high pressure flash chamber 9, power top roll 10, power lower roll 11, guide roller D12, guide roller E13, guide roller F14, steel coil strip 15, line shaft 16, loading frame 17, lower grillage 18, live roll support 19, discharger 20, nitrous processing 21, rubber slab 22, oblique groove 23, main flow sand launder 24, pond 25, water 26, retort stand 27.

The specific embodiment

As shown in Figure 1, in one end of loading frame 17, be provided with discharger 20, the other end is provided with line shaft 16, is provided with a plurality of live roll supports 19 on the loading frame 17 between discharger 20 and line shaft 16, and power top roll 10 and power lower roll 11 are installed on live roll support 19.

As shown in Figure 1, below loading frame 17, be provided with pond 25, by high-pressure pump, the water in pond 25 26 is squeezed in high pressure flash chamber 9 and by a plurality of shower nozzles in high pressure flash chamber 9, steel band 2 is carried out to high pressure washing, then water flows in sandbox 5 by tank, after filtering, sand in sandbox 5 enters again in sandbox 5 pond below formation water circulation.

As shown in Figure 1 and Figure 2, steel band 2 enters in sandbox 5 through shelling roll 3, guide roller A4 by the traction of power top roll 10 and power lower roll 11, in described sandbox 5, enough abrasive sands are housed, the route passing through according to steel band 2 in sandbox 5, is provided with many group circulation strigils 6.Every group of described circulation strigil 6 is comprised of two rubber slabs 22 of symmetry, on each rubber slab 22, be provided with many and walk sand groove, the described structure of walking sand groove is: middle part is main flow sand launder 24, abrasive sand in described main flow sand launder 24, descending along with steel band 2, is diverted in a plurality of oblique grooves 23, makes the speed of travel of steel band 2 and the flowing velocity of abrasive sand produce speed difference, reach the effect of sufficient mill pin, thereby remove oxide skin and iron rust on steel band 2.

In sandbox 5, be provided with retort stand 27, on retort stand 27, be provided with groove, rafter offset plate 22 has been installed in described groove.

Steel band 2 enters high pressure flash chamber 9 through guide roller B7, guide roller C8 and carries out a water flushing, send into guide roller D12, traction by another power top roll 10 and power lower roll 11 enters in another sandbox 5, circulation strigil 6 in sandbox 5 drives abrasive sand to flow, with 2 two fine grindings of steel band, then through guide roller E13, guide roller F14, enter in high pressure flash chamber 9, carry out intermediate water flushing, lean on line shaft 16 steel band 2 harvest steel coil strip 15.In order to prevent that steel band 2 from getting rusty again, before rolling work, carry out nitrous and process 21, steel band 2 can not got rusty at no distant date.

At loading frame 17 and lower grillage 18 middle parts, be provided with at least one sandbox 5, as steel band 2 surface scales and iron rust too much blocked up, need to increase sandbox 5, thereby reach the high cleanliness requirement on steel band 2 surfaces.

The shelling roll 3 arranging on loading frame 17 number, depend on the bonding firm degree of surface oxidized skin on steel band 2.

Claims

1. derust cleaning equipment and method of an anacidity steel band, comprise, loading frame (17) and lower grillage (18) and steel band (2), it is characterized in that: steel band (2) bears the pressure of sand post in sandbox (5) in sandbox (5), the strigil (6) that makes to circulate produces and clamps rubbing action, through too much organizing circulation strigil (6), steel band (2) is rubbed, thereby remove oxide skin and the iron rust on steel band (2).

2. the cleaning equipment that derusts according to claim 1, it is characterized in that: in sandbox (5), be provided with many group circulation strigils (6), every group of circulation strigil (6) is comprised of two rubber slabs (22), is provided with many and walks sand groove on each rubber slab (22).

3. the cleaning equipment that derusts according to claim 2, is characterized in that: the described sand groove of walking, and middle part is main flow sand launder (24), the abrasive sand in sandbox (5) is in main flow sand launder (24) is diverted to a plurality of oblique grooves (23).

4. the cleaning equipment that derusts according to claim 2, is characterized in that: in sandbox (5), be provided with retort stand (27), on retort stand (27), be provided with groove, rubber slab (22) is installed in groove.

5. the cleaning equipment that derusts according to claim 3, is characterized in that: described abrasive sand, comprises corundum, diamantane sand, brown diamond spar sand, diamond sand, common river sand.

6. the cleaning equipment that derusts according to claim 1, it is characterized in that: in one end of loading frame (17), be provided with discharger (20), the other end is provided with line shaft (16), on the loading frame (17) between discharger (20) and line shaft (16), be provided with a plurality of live roll supports (19), power top roll (10) and power lower roll (11) are installed on live roll support (19).

7. the cleaning equipment that derusts according to claim 6, it is characterized in that: below loading frame (17), be provided with pond (25), by high-pressure pump, the water (26) in pond (25) is squeezed in high pressure flash chamber (9) and by a plurality of shower nozzles in high pressure flash chamber (9), steel band (2) is carried out to high pressure washing, then water flows in sandbox (5) by tank, then after the sand in sandbox (5) filters, enters in the pond below sandbox (5).

8. the cleaning equipment that derusts according to claim 7, it is characterized in that: steel band (2) leans on the traction of power top roll (10) and power lower roll (11) through shelling roll (3), guide roller A (4) enters in sandbox (5), through guide roller B (7), guide roller C (8) enters high pressure flash chamber (9) and carries out a water flushing, send into guide roller D (12), traction by another power top roll (10) and power lower roll (11) enters in another sandbox (5), circulation strigil (6) in sandbox (5) drives abrasive sand to flow, refine with steel band (2) secondary, then through guide roller E (13), guide roller F (14) enters in high pressure flash chamber (9), carry out intermediate water flushing, lean on line shaft (16) steel band (2) harvest steel coil strip (15).

9. the cleaning equipment that derusts according to claim 8, is characterized in that: in order to prevent that steel band (2) from getting rusty again, carries out nitrous processing (21) before rolling work.