CN202915663U

CN202915663U - Carbon black production drying machine

Info

Publication number: CN202915663U
Application number: CN2012205994081U
Authority: CN
Inventors: 王金锤; 张林峰
Original assignee: HANGZHOU ZHONGCE QINGQUAN INDUSTRIAL Co Ltd
Current assignee: HANGZHOU ZHONGCE QINGQUAN INDUSTRIAL Co Ltd
Priority date: 2012-11-14
Filing date: 2012-11-14
Publication date: 2013-05-01
Anticipated expiration: 2022-11-14

Abstract

The utility model provides a carbon black production drying machine and relates to a drying machine improved structure of a carbon black production line. The carbon black production drying machine comprises a rotating drying machine, a fire box, an escape pipe, a riding wheel, a sealing block and a smoke inlet. The carbon black production drying machine is mainly characterized in that the fire box is in a circular shape, a heat recycling pipe is additionally arranged at one end of the escape pipe, the heat recycling pipe is divided into two sub-pipes which respectively enter the fire box, adjusting valves are arranged on the two sub-pipes, a plurality of rows of J-shaped feed guiding spiral plates and L-shaped feed guiding spiral plates are arranged on a shoveling plate of a cylindrical body in the front section of the rotating drying machine, and the J-shaped feed guiding spiral plates and the L-shaped feed guiding spiral plates are respectively arranged to form an angle at 20 degrees to 25 degrees with the cylindrical body. The outlet temperature of the drying machine is more stably controlled. Due to the fact that extraction temperature reduces by 40 DEG C, heat exchanging effect of the drying machine is improved. Pressure of the fire box is obviously reduced, tail gas is saved, boiler evaporating capacity is improved, energy is saved, emission is reduced, production cost is reduced and economic benefit is improved.

Description

The production of carbon black drying machine

Technical field

The drying machine that the utility model relates to a kind of carbon black production line improves structure.

Background technology

Article one, producing 20000 tons of hard (carbon) black production lines per year, can to produce exhaust flow be 25000Nm ³/ h, carbon black tail gas is all recycled, and wherein 20% part is as the fuel of rotary carbon black dryer thermal source, and 80% partial tail gas is delivered to the tail gas boiler and is made fuel power generation function.In the reality, my hard (carbon) black production line of company uses that square drying machine fire-box energy consumption is large, the sealing leak amount is large, causes the tail gas amount to surpass more than 40% of total amount, not only produces a large amount of tail gas wastes, and directly affect granulation room operating environment, and restricted the carbon black drying capacity.Only have existing drying machine, fire-box strengthened and improve, improve the drying machine drying capacity, stop a leak, reduce energy consumption and solve and produce this bottleneck problem.

Square drying machine fire-box is in service mainly to exist following problem: 1, cool time is slow: major effect repair time and the carbon black that is trapped in the cylindrical shell is easily caught fire, produce hidden danger for safety, environmental protection.The existing secondary of the event of catching fire appears in company.2, energy consumption is large, and main manifestations is that the use amount of tail gas is large.Tail gas furnace air mass flow data are FIC-203:3350Nm ³/ h, exhaust flow be 9500～11750 Nm approximately ³/ h has substantially exceeded 20% theoretical delivery.3, drying machine sealing, casing corrosion make a large amount of hot gas leakage, have a strong impact on the environmental pollution of granulation room, and summer, the tail gas flavor is heavy especially, as or else addressing this problem, affected by environmently cause most of staff wastage.Because the hot gas of sealing place directly blows on the support roller, temperature surpasses 150 ℃, make bearing often damage, stuck, make the support roller wearing and tearing, cause equipment breakdown.4, maintenance is constant, and because support roller place maintenance distance is little, L2=500(sees Fig. 1), labour intensity is large.5, the fire-box maintenance cost is high.Because of fire-box inlet temperature high (reaching 1100 ℃), fire-box entrance brick, arc brick are easily damaged, service time is short, and maintenance is once more than ten thousand yuan.

Summary of the invention

The utility model provides a kind of production of carbon black drying machine of energy-conservation, economical operation.

The utility model is achieved by the following technical solution: a kind of production of carbon black drying machine, comprise rotary dryer, fire-box, blow-down pipe, support roller, sealing block, smoke inlet, and its technical characteristics is that described fire-box is for circular; Blow-down pipe one end increases the heat recovery pipe, and the heat recovery pipe is divided into two and is in charge of and enters respectively fire-box, is in charge of control valve is set for described two;

The flight of described rotary dryer leading portion cylindrical shell is provided with some row J type guide spiral plates and L-type guide spiral plate;

Described J type guide spiral plate becomes respectively 20o-25 o angle to arrange with L-type guide spiral plate with cylindrical shell.

The utility model makes the control of drying machine outlet temperature more stable; Extraction temperature descends 40 ℃, has improved the drying machine heat exchange effect; Fire-box pressure obviously descends, and has saved tail gas, has improved boiler capacity, to energy-saving and emission-reduction, reduce production costs and increase economic efficiency and played positive role.

Description of drawings:

Fig. 1 is the structural representation of production of carbon black drying machine;

Fig. 2 is that the A of Fig. 1 is to view;

Fig. 3 is drying machine flight layout drawing;

Fig. 4 is the structural representation of L-type guide spiral plate;

Fig. 5 is the structural representation of J type guide spiral plate.

The specific embodiment:

As shown in Figure 1 and Figure 2, this production of carbon black drying machine comprises rotary dryer 1, drum type brake fire-box 2, blow-down pipe 3, heat recovery pipe 4, drying machine support roller 5, sealing block 6, smoke inlet 7.Blow-down pipe one end increases heat recovery pipe 4, and the heat recovery pipe is divided into two and is in charge of and enters respectively fire-box, is in charge of for two control valve 8,9 is set.Drying machine blow-down pipe temperature has 500 ℃～550 ℃, and this part hot gas is caused heat exchange in the drying machine; By the heat recovery pipe is divided into two-way, control valve is installed, be connected to fire-box discharging opening end plate, the perforate of replacement drying machine cylindrical shell increases thermal current and enters drying machine, improves heat transfer effect.

Such as Fig. 3, Fig. 4, shown in Figure 5, the flight 10 of rotary dryer leading portion cylindrical shell is provided with some row J type guide spiral plates 11 and L-type guide spiral plate 12, and J type guide spiral plate becomes respectively the 20o angle to arrange with L-type guide spiral plate with cylindrical shell.Also be provided with spiral stock guide 13 on the flight.Improve by the drying machine flight, adopt J type and L-type flight, with the rotation of cylindrical shell, carbon black particle is taken up, scatter again, the increase carbon black particle contacts with thermal current, to improve drying efficiency.

The utility model makes the control of drying machine outlet temperature more stable; Extraction temperature descends 40 ℃, has improved the drying machine heat exchange effect.

Claims

1. a production of carbon black drying machine comprises rotary dryer, fire-box, blow-down pipe, support roller, sealing block, smoke inlet, it is characterized in that described fire-box is for circular; Blow-down pipe one end increases the heat recovery pipe, and the heat recovery pipe is divided into two and is in charge of and enters respectively fire-box, is in charge of control valve is set for described two.

2. a kind of production of carbon black drying machine as claimed in claim 1 is characterized in that the flight of described rotary dryer leading portion cylindrical shell is provided with some row J type guide spiral plates and L-type guide spiral plate.

3. a kind of production of carbon black drying machine as claimed in claim 2 is characterized in that described J type guide spiral plate and L-type guide spiral plate become respectively 20o-25 o angle to arrange with cylindrical shell.