CN210302921U - Lead-containing smoke slurrying device - Google Patents

Abstract

A lead-containing smoke slurrying device comprises a cylindrical tank body, wherein the top end of the tank body is inwards folded to form a round table, a plurality of vertical channel steel are arranged on the outer wall of the tank body along the circumference, an overhauling platform is arranged at the top end of the channel steel, the bottom of the tank body is inwards protruded to form a base in the shape of the round table, a stirring device is arranged in the tank body, a feed inlet and a vent are respectively arranged on two sides of the center of the top of the tank body, an overflow pipe and a water inlet pipe are arranged on the outer side of the upper part of the tank body, a densimeter mounting hole and a slurrying liquid; the stirring device comprises a stirring paddle arranged in the tank body and at the center of the circle of the base, the stirring paddle is fixedly connected with a speed reducer and a motor which are arranged above the tank body through a stirring shaft, the stirring paddle comprises 2-4 blades, and the bottom of each blade is provided with a wear-resistant rubber sheet; the tank body is provided with an access hole right facing the stirring paddle, and an access cover plate is arranged outside the access hole.

Description

Lead-containing smoke slurrying device

Technical Field

The utility model relates to a lead smelting trade contains plumbous smoke and dust pollution and administers and utilizes the field, specifically is a contain plumbous smoke and dust slurrying device.

Background

At present, the pollution treatment and utilization modes of lead-containing smoke dust in the lead smelting industry mainly comprise three types: the first type is that the materials are loaded into a material container (box, etc.) and then a forklift or an automobile is transferred to a returned material utilization and storage place, so that the transportation efficiency is low, a large amount of dust is generated when the materials are dumped or transferred into a returned material bin, and the lead dust environmental pollution is large; the second type is that single-machine or multi-machine combination such as a scraper conveyor, a screw conveyor, a bucket elevator or a pipe chain conveyor is adopted to convey lead-containing dust to a material returning bin, the conveying distance is long, the number of conveying machines is large, the investment cost is high, equipment faults are difficult to overhaul, dust collected in conveying equipment needs to be completely cleaned during overhaul, dust pollution is caused, even temporary production halt is caused, and the production efficiency is influenced; and in the third category, the gas pipeline is adopted to blow and suck the soot to a material returning bin, the requirement on the moisture content of the soot is high, the pipeline is easy to be blocked by moisture absorption, the soot is maintained by completely removing the soot, the dust pollution is caused, and the maintenance time period is long.

Disclosure of Invention

An object of the utility model is to overcome prior art's the aforesaid not enough and provide a lead-containing smoke and dust slurrying device, solve lead-containing smoke and dust particle diameter little (0.5-40 um) and be difficult to dissolve in water and slurrying liquid viscosity big and the big problem of proportion, can realize lead-containing smoke and dust continuous slurrying and supervisory control proportion, form the slurrying liquid with lead smoke and dust, more do benefit to follow-up carrying and press filtering with the material point and become to consider the cake and use.

The technical scheme of the utility model is that: the tank comprises a cylindrical tank body, wherein the top end of the tank body is inwards folded to form a round table, a plurality of vertical channel steel are arranged on the outer wall of the tank body along the circumference, an overhaul platform is arranged at the top end of the channel steel, the bottom of the tank body protrudes inwards to form a round table-shaped base, a stirring device is arranged in the tank body, a feed inlet and a vent are respectively arranged on two sides of the center of the top of the tank body, an overflow pipe and a water inlet pipe are arranged on the outer side of the upper part of the tank body, a densimeter mounting hole and a slurrying liquid discharging pipe are arranged; the stirring device comprises a stirring paddle arranged in the tank body and at the center of the circle of the base, the stirring paddle is fixedly connected with a speed reducer and a motor which are arranged above the tank body through a stirring shaft, the stirring paddle comprises 2-4 blades, and the bottom of each blade is provided with a wear-resistant rubber sheet; the tank body is provided with an access hole right facing the stirring paddle, and an access cover plate is arranged outside the access hole.

The thickness of the tank body is 6-10mm, the inner wall of the tank body is a 316L stainless steel plate, and the outer wall of the tank body is carbon steel Q235B; the outer diameter of the round platform is 1200-2000mm, the outer diameter of the cylinder is 1800-3200mm, and the height H of the tank body is about 1.5 times of the outer diameter of the cylinder.

The feed inlet and the air vent are both 300 mm-300 mm square openings, and the air vent is covered by filter cloth (the air permeability is 30L/m)²S) and a sealing strip cover plate.

The diameter of the overflow pipe is 50-80mm, the diameter of the water inlet pipe is 40-65mm, and the water inlet pipe is slightly higher than the overflow pipe by 80-100 mm.

The tank body, the round table, the stirring paddle and the base are arranged on the same central line.

The beneficial effects of the utility model reside in that: the problem of dust pollution caused by lead smoke dust is solved, the problem of pipeline blockage maintenance can be solved by flushing the conveying pipeline on line with clear water, the smoke dust generation rate of furnace feeding materials can be reduced, and the production efficiency is improved; solves the problems that the lead-containing smoke dust has small particle size (0.5-40 um) and is difficult to dissolve in water, and the slurry has high viscosity and high specific gravity, and can realize continuous slurry and monitoring and controlling specific gravity of the lead-containing smoke dust.

Drawings

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

in the figure, 1, jar body, 2, stirring rake, 3, (mixing) shaft, 4, speed reducer and motor, 5, feed inlet, 6, blow vent, 7, overflow pipe, 8, level gauge mounting hole, 9, densimeter mounting hole, 10, pulpifying liquid discharging pipe, 11, maintenance apron, 12, access hole, 13, inlet tube, 14, maintenance platform.

Detailed Description

In fig. 1, the utility model discloses a columniform jar body 1, 1 top of jar body inwards receive and form a round platform, and 1 outer wall of jar body is equipped with a plurality of vertical channel-section steels along the circumference, and the top of channel-section steel is equipped with overhauls platform 14, and the base of the inward bulge formation round platform shape in 1 bottom of jar body. The thickness of the tank body 1 is 6-10mm, the inner wall is a 316L stainless steel plate, and the outer wall is carbon steel Q235B; the outer diameter of the round platform is 1200-2000mm, the outer diameter of the cylinder is 1800-3200mm, and the height of the tank body 1 is about 1.5 times of the outer diameter of the cylinder. The height of the channel steel is greater than that of the tank body 1. The tank body 1 is internally provided withAgitating unit, the central both sides at 1 tops of jar body are equipped with feed inlet 5, blow vent 6 respectively, and feed inlet 5, blow vent 6 are 300 mm's square mouth. The feed inlet 5 is directly communicated with the lead-containing smoke screw conveyor and is used for feeding the lead-containing smoke screw conveyor. The vent 6 naturally exhausts air through the temperature difference between the inside and the outside of the tank body 1. The vent 6 is covered with filter cloth (air permeability of 30L/m)²and/S) and a sealing strip cover plate, so that smoke in the tank can enter air after being purified by filter cloth, the balance of the pressure difference between the inside and the outside of the tank is kept, and the lead-containing smoke spiral conveyor is prevented from emitting dust. The outer side of the upper part of the tank body 1 is provided with an overflow pipe 7 and a water inlet pipe 13, and the outer side of the lower part of the tank body 1 is provided with a densimeter mounting hole 9 and a slurry discharging pipe 10. A plurality of liquid level meter mounting holes 8 are formed in the vertical direction of the outer side wall of the tank body 1, and the liquid level meter mounting holes 8 are DN20 through holes with flanges. The stirring device comprises a stirring paddle 2 which is arranged in the tank body 1 and clings to the base, the stirring paddle 2 is fixedly connected with a speed reducer and a motor 4 which are arranged above the tank body 1 through a stirring shaft 3, the stirring paddle 2 comprises 2-4 blades, and the bottom of each blade is provided with a wear-resistant rubber sheet. The wear-resistant rubber sheet is fixed at the bottom of the blade through screws, the width of the wear-resistant rubber sheet is 50-80mm, the thickness of the wear-resistant rubber sheet is 5-10mm, the wear-resistant rubber sheet is slightly contacted with the base, and an angle of 30-45 degrees is formed between the wear-resistant rubber sheet and the plane where the base is located. An access hole 12 is arranged on the tank body 1 and right opposite to the stirring paddle 2, and an access cover plate 11 is arranged outside the access hole 12. The diameter of the overflow pipe 7 is 50-80mm, the diameter of the water inlet pipe 13 is 40-65mm, and the water inlet 13 is 80-100mm higher than the overflow pipe 7. The diameter of the access hole 12 is 600 mm and 800 mm. The round table, the stirring paddle 2 and the base of the tank body 1 are on the same central line. One side of the access cover plate 11, which is in contact with the access hole 12, is made of a 316L stainless steel plate, and the other side of the access cover plate is made of common carbon steel Q235B. Not only preventing the corrosion of the lead-containing smoke dust slurry, but also reducing the manufacturing cost. The water is introduced into the tank 1 through the water inlet pipe 13 by about 50-80% of the volume of the tank 1, and the overflow pipe 7 prevents the water from being excessively supplied for overflow as observed by the liquid level meter. Lead-containing smoke dust enters the water in the tank body 1 from the feed port 5 through the screw conveyer, hot smoke is generated to form temperature difference between the inside and the outside of the tank through the vent 6, and the lead-containing smoke dust is naturally exhausted outwards. The liquid in the tank body forms a downward flowing vortex under the stirring paddle 2, and the lead-containing smoke dust continuously enters the tank body and is dispersed and dissolved in the lead-containing smoke dust along with the vortex. The stirring speed is generally controlled to be 50-72 r/min. The specific gravity of the slurry in the tank body 1 is observed through a densimeter mounting hole 9 and a densimeter, and is generally controlled to be 1.4-1.8t/m 3. After stirring is finished, slurried smoke and dust liquid is discharged to a filter pressing process through a slurried liquid discharge pipe 10 and a pump. If the specific gravity of the slurry is too low, the amount of used circulating water is too large, and electricity is wasted; the slurry has too high specific gravity, which causes the power of a water pump to be insufficient or the pressure filtration point to be not reached. When the stirring paddle 2 is seriously worn, the vent 6 and the maintenance cover plate 11 are opened, people can enter the tank body 1 after the upper and lower ventilation convection is formed, and the stirring paddle 2 is detached and replaced. The utility model discloses filter-pressing into the 10% filter cake that contains water to returning charge department behind the for the dust that contains lead slurrying slurry pump, both solved to contain lead the dust and transport and produce the dust raise dust pollution problem, again available clear water washes pipeline on line and solves and blocks up the pipeline maintenance problem, reducible advance stove material smoke and dust production rate simultaneously, improvement production efficiency. The utility model provides a lead-containing smoke dust particle size is little (0.5-40 um) and be difficult to dissolve in water to and the pump delivery problem for the thick liquid is influenced to the big and specific gravity of slurry viscosity, can realize lead-containing smoke dust slurrying and supervisory control proportion in succession.

Claims (5)

1. The utility model provides a lead-containing smoke slurrying device which characterized in that: the tank comprises a cylindrical tank body (1), wherein the top end of the tank body (1) is inwards folded to form a circular truncated cone, a plurality of vertical channel steel are arranged on the outer wall of the tank body (1) along the circumference, an overhaul platform (14) is arranged at the top end of the channel steel, the bottom of the tank body (1) is inwards protruded to form a base in the shape of the circular truncated cone, a stirring device is arranged in the tank body (1), a feeding hole (5) and a vent hole (6) are respectively formed in two sides of the center of the top of the tank body (1), an overflow pipe (7) and a water inlet pipe (13) are arranged on the outer side of the upper part of the tank body (1), a densimeter mounting hole (9) and a slurrying liquid discharging pipe (10; the stirring device comprises a stirring paddle (2) which is arranged in the tank body (1) and at the center of the circle of the base, the stirring paddle (2) is fixedly connected with a speed reducer and a motor (4) which are arranged above the tank body (1) through a stirring shaft (3), the stirring paddle (2) comprises 2-4 blades, and the bottom of each blade is provided with a wear-resistant rubber sheet; an access hole (12) is formed in the position, right opposite to the stirring paddle (2), of the tank body (1), and an access cover plate (11) is arranged outside the access hole (12).

2. The lead-containing flue dust slurrying device as claimed in claim 1, wherein: the thickness of the tank body (1) is 6-10mm, the inner wall is a 316L stainless steel plate, and the outer wall is carbon steel Q235B; the outer diameter of the round platform is 1200-2000mm, the outer diameter of the cylinder is 1800-3200mm, and the height H of the tank body (1) is about 1.5 times of the outer diameter of the cylinder.

3. The lead-containing flue dust slurrying device as claimed in claim 1, wherein: the feed inlet (5) and the vent (6) are 300 mm-300 mm square openings, and the vent (6) is covered with a cover plate with filter cloth and a sealing strip.

4. The lead-containing flue dust slurrying device as claimed in claim 1, wherein: the diameter of the overflow pipe (7) is 50-80mm, the diameter of the water inlet pipe (13) is 40-65mm, and the water inlet pipe (13) is slightly higher than the overflow pipe (7) by 80-100 mm.

5. The lead-containing flue dust slurrying device as claimed in claim 1, wherein: the tank body (1), the round table, the stirring paddle (2) and the base are positioned on the same central line.

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