阅读说明：本技术 一种悬浮式粉体烘干机 (Floated powder drying-machine ) 是由 李国安 于 2020-07-30 设计创作，主要内容包括：本发明公开一种悬浮式粉体烘干机,包括烘干组件、燃煤输送组件和收尘组件,所述烘干组件包括烘干仓、扩散式旋风收尘器和空气斜槽输送机,所述烘干仓的右侧位置处设有扩散式旋风收尘器,且烘干仓的下方设有空气斜槽输送机,所述烘干仓内部的左侧设有燃烧室,且燃烧室的左侧设有燃煤进口,所述燃烧室内部的底部设有布风板,且燃烧室的下方位置处通过鼓风管连通有鼓风机,所述烘干仓顶部的中间位置处设有料斗；本发明内部无转动部件,主要是由呈梯形状排列的折流板、导流板布置构成,待烘干物料成梯形流落在一组梯级上,物料在两侧来回碰撞,粗料下落排出,达到打散料块、充分暴露细粉和延长料幕在烘干处停留时间的干燥效果。(The invention discloses a suspension type powder dryer, which comprises a drying component, a coal-fired conveying component and a dust collecting component, wherein the drying component comprises a drying bin, a diffusion type cyclone dust collector and an air chute conveyor, the diffusion type cyclone dust collector is arranged at the right side position of the drying bin, the air chute conveyor is arranged below the drying bin, a combustion chamber is arranged at the left side in the drying bin, a coal-fired inlet is arranged at the left side of the combustion chamber, an air distribution plate is arranged at the bottom in the combustion chamber, the lower position of the combustion chamber is communicated with an air blower through an air blast pipe, and a hopper is arranged at the middle position of the top of the drying bin; the invention has no rotating parts inside, and is mainly formed by arranging baffle plates and guide plates which are arranged in a trapezoid shape, materials to be dried fall on a group of steps in a trapezoid flow manner, the materials collide back and forth at two sides, coarse materials fall and are discharged, and the drying effects of scattering material blocks, fully exposing fine powder and prolonging the retention time of a material curtain at a drying position are achieved.)

1. The utility model provides a floated powder drying-machine, includes drying assembly (1), fire coal conveying component (2) and subassembly (3) that gathers dust, its characterized in that: the drying component (1) comprises a drying bin, a diffusion type cyclone dust collector (4) and an air chute conveyor (5), the diffusion type cyclone dust collector (4) is arranged at the position of the right side of the drying bin, the air chute conveyor (5) is arranged below the drying bin, a combustion chamber (6) is arranged at the left side inside the drying bin, a coal inlet (7) is arranged at the left side of the combustion chamber (6), an air distribution plate (8) is arranged at the bottom inside the combustion chamber (6), an air blower (9) is communicated with the position below the combustion chamber (6) through an air blast pipe, a hopper (10) is arranged at the middle position of the top of the drying bin, a guide plate (11) and a baffle plate (12) are respectively arranged at the positions of two sides below a discharge port of the hopper (10), the guide plate (11) and the baffle plate (12) are respectively provided with a plurality of groups, and the guide plate (11) and the baffle plate (12) are obliquely arranged inside, the left side position of the guide plate (11) is a flue gas inlet area (13), and the right side position of the baffle plate (12) is a suspension area (14).

2. The suspension type powder dryer of claim 1, wherein: the right-hand member of stoving storehouse bottom is equipped with blanking fill (15), and the output and the air chute conveyer (5) intercommunication of blanking fill (15), the left end of air chute conveyer (5) below is equipped with chute fan (16), and the output and the air chute conveyer (5) intercommunication of chute fan (16).

3. The suspension type powder dryer of claim 1, wherein: the right-hand member at stoving storehouse top is equipped with the air exit, and is equipped with out tuber pipe (17) on the air exit, go out one side intercommunication of tuber pipe (17) and diffusion formula cyclone (4), the lower extreme blanking end and the air chute conveyer (5) intercommunication of diffusion formula cyclone (4).

4. The suspension type powder dryer of claim 1, wherein: the drying device is characterized in that a slag discharge hole (18) is formed below the air distribution plate (8), a drying bin extends out of the lower end of the slag discharge hole (18), a drying raw material conveyor (19) is arranged at the position above the drying bin, the discharge end of the drying raw material conveyor (19) faces towards the hopper (10), the drying bin is composed of red bricks (20) and is hooped peripherally, and refractory bricks (21) are lined inside the red bricks (20).

5. The suspension type powder dryer of claim 1, wherein: the coal conveying assembly (2) comprises a coal conveyor (22), a crusher (23), a lifter (24) and a storage tank (25), the output end of the coal conveyor (22) is communicated with the crusher (23), the output end of the crusher (23) is communicated with the lifter (24), and the output end of the lifter (24) is communicated with the storage tank (25).

6. The suspension type powder dryer of claim 5, wherein: the coal-fired conveyor (22) is provided with a magnetic iron remover (26), the discharge hole of the storage tank (25) is provided with a coal feeding metering scale (27), and the discharge hole of the coal feeding metering scale (27) is communicated with the coal-fired inlet (7).

7. The suspension type powder dryer of claim 1, wherein: dust collection assembly (3) are including heat-resisting anti dew pocket type dust collector (28), filter material conveyer (29) and exhaust window (30), the top of diffusion formula cyclone (4) is given vent to anger the end and is passed through air duct and heat-resisting anti dew pocket type dust collector (28) intercommunication, and the bottom blanking end of heat-resisting anti dew pocket type dust collector (28) is equipped with lock wind tripper (31), the output of lock wind tripper (31) is towards filter material conveyer (29), and filter material conveyer (29) the output and air chute conveyer (5) intercommunication.

8. The suspension type powder dryer of claim 7, wherein: the end intercommunication of giving vent to anger of heat-resisting anti dew bag dust collector (28) has draught fan (32), draught fan (32) are through pipe and exhaust window (30) intercommunication, and are equipped with automatically regulated valve (33) on the pipe.

9. The suspension type powder dryer of claim 1, wherein: the baffle plate (12) and the guide plate (11) are fixedly installed in the drying bin through bolts, and the baffle plate (12) and the guide plate (11) are both formed by casting heat-resistant alloy steel.

Technical Field

The invention relates to the technical field of building materials and chemical engineering, in particular to a suspension type powder dryer.

Background

The raw material drying equipment has more types, but the drying mode is divided into two main types, one type is independent drying equipment, the dried material is conveyed to the next procedure for storage or processing, the other type is equipment which is used for drying and simultaneously has crushing, grinding or classification processing, and two production operations are simultaneously carried out;

the drying is combined with the devices of crushing, grinding or classifying and the like, has the advantages of simplifying the process flow, saving the engineering investment, reducing the conveying link and raising dust, simultaneously drying the raw materials in the processing process, and having better drying effect, but the air inlet temperature can only be controlled below 350 ℃ under the general condition, so the maximum water content of the fed materials can only be controlled below 8 percent, when the initial water content of the materials is larger and the viscosity of the materials is larger, the production blockage can be caused and the difficulty of the equipment productivity is seriously influenced, so the single-function drying device can be selected by a factory;

at present, the most commonly used drying equipment comprises rotary (comprising a plurality of cylinders), a vertical drying tower and a chain plate movable type, and then fluid type, suspension type, vibrating type and other equipment, and various dryers have different drying adaptability to materials, so that the rotary dryer has the widest application range and more applications; the fluidized dryer is only suitable for drying slag and other materials with lighter density; the air inlet temperature of drying equipment such as vibrating flow type drying equipment, chain plate moving type drying equipment and the like is limited due to mechanical moving parts, and the drying equipment can only be used for drying waste residues, garbage and other environmental-friendly classification and cannot be suitable for large-scale and industrial raw material drying production; some simple drying equipment such as a vertical drying tower and the like are eliminated due to high energy consumption and serious pollution;

the suspension type dryer mainly dries powdery materials, the main body part of the structure of the suspension type dryer is a fixed horizontal metal shell, refractory bricks are built in the shell, a plurality of rotating shafts with stirring blades are installed at the lower parts of the rotating shafts, the rotating shafts rotate at a certain speed, the stirring blades throw the materials entering the dryer upwards to form a suspension state, the materials are in full contact with hot air flow passing through the dryer and exchange heat, and the purpose of drying the materials is achieved, but the suspension type dryer is not suitable for granular materials with larger particles and materials with larger viscosity, in addition, a rotating part of the suspension type dryer is extremely easy to wear, and the energy consumption of a drying unit is large, so the suspension type dryer is extremely rarely used;

at present, the main power source is thermal power generation, which accounts for about 73% of the total power generation, the fly ash is from a thermal power plant and an urban centralized heat supply boiler which take coal dust as fuel, more than 90% of the fly ash is wet ash discharge, the annual discharge amount of the fly ash currently reaches 5.6-6.1 million tons/year, simultaneously, 1 million tons/year of desulfurized gypsum generated by treating combustion smoke is also more than one ton/year, the fly ash and the desulfurized gypsum are wastes of the power plant and become the largest industrial solid pollution source in China, although the fly ash is widely applied to various departments such as construction, building materials, water conservancy and the like through development, because of the high water content, the water content is generally 10-20%, the high fineness (more than 200 meshes) and the particles are mainly concentrated between 30-60 mu m, generally exist in a physical state of conglomeration and block bonding, the reason of difficult drying and dehydration seriously restricts the deep processing of the fly ash and the desulfurized gypsum to be the utilization of high value, most of the powder drying machines can only be used as mixed materials of common building materials, the using amount is limited, so that the emission storage is increased year by year to become environment-friendly and public nuisance, and the full drying becomes a problem which needs to be solved urgently at present, therefore, the invention provides a suspension type powder drying machine to solve the problems in the prior art.

Disclosure of Invention

In view of the above problems, an object of the present invention is to provide a suspension type powder dryer, in which hot flue gas generated by combustion passes through stepped inclined baffle plates and guide plates to scatter material blocks and fully expose fine powder, and the residence time of a material curtain at a powder scattering position is prolonged to form a suspension state, and hot air flows are fully contacted with the material to perform heat exchange, thereby achieving the effect of drying the powder material.

In order to realize the purpose of the invention, the invention is realized by the following technical scheme: a suspension type powder dryer comprises a drying assembly, a coal-fired conveying assembly and a dust collecting assembly, wherein the drying assembly comprises a drying bin, a diffusion type cyclone dust collector and an air chute conveyor, the diffusion type cyclone dust collector is arranged at the position of the right side of the drying bin, the air chute conveyor is arranged below the drying bin, a combustion chamber is arranged at the left side inside the drying bin, a coal-fired inlet is arranged at the left side of the combustion chamber, an air distribution plate is arranged at the bottom inside the combustion chamber, an air blower is communicated with the position below the combustion chamber through an air blowing pipe, a hopper is arranged at the middle position of the top of the drying bin, guide plates and baffle plates are respectively arranged at the positions of two sides below a discharge port of the hopper, a plurality of groups of guide plates and baffle plates are arranged on the guide plates and the baffle plates in a stepped inclined manner inside the drying bin, and the position at the left side of the guide plates is, the right side position of the baffle plate is a suspension area.

The further improvement lies in that: the right-hand member of stoving storehouse bottom is equipped with the blanking fill, and the output and the air chute conveyer intercommunication of blanking fill, the left end of air chute conveyer below is equipped with the chute fan, and the output and the air chute conveyer intercommunication of chute fan.

The further improvement lies in that: the right-hand member at stoving storehouse top is equipped with the air exit, and is equipped with out the tuber pipe on the air exit, go out the tuber pipe and communicate with one side of diffusion formula cyclone, diffusion formula cyclone's lower extreme blanking end and air chute conveyer intercommunication.

The further improvement lies in that: the drying device is characterized in that a slag discharge hole is formed in the lower portion of the air distribution plate, a drying bin extends out of the lower end of the slag discharge hole, a drying raw material conveyor is arranged above the drying bin, the discharge end of the drying raw material conveyor faces towards the hopper, the drying bin is composed of red bricks, hooping is formed on the periphery of the red bricks, and refractory bricks are lined on the inner side of the red bricks.

The further improvement lies in that: the coal conveying assembly comprises a coal conveyor, a crusher, a lifter and a storage tank, the output end of the coal conveyor is communicated with the crusher, the output end of the crusher is communicated with the lifter, and the output end of the lifter is communicated with the storage tank.

The further improvement lies in that: the coal-fired conveyor is provided with a magnetic iron remover, the discharge port of the storage tank is provided with a coal feeding metering scale, and the discharge port of the coal feeding metering scale is communicated with a coal-fired inlet.

The further improvement lies in that: the dust collecting assembly comprises a heat-resistant anti-condensation bag type dust collector, a filter material conveyor and an exhaust window, the air outlet end of the upper portion of the diffusion cyclone dust collector is communicated with the heat-resistant anti-condensation bag type dust collector through an air duct, the bottom blanking end of the heat-resistant anti-condensation bag type dust collector is provided with an air locking discharger, the output end of the air locking discharger faces the filter material conveyor, and the output end of the filter material conveyor is communicated with the air chute conveyor.

The further improvement lies in that: the air outlet end of the heat-resistant anti-condensation bag type dust collector is communicated with an induced draft fan, the induced draft fan is communicated with an exhaust window through a conduit, and an automatic regulating valve is arranged on the conduit.

The further improvement lies in that: the baffle plate and the guide plate are fixedly installed in the drying bin through bolts and are both formed by casting heat-resistant alloy steel.

The invention has the beneficial effects that: the invention has no rotating parts inside, which is mainly composed of baffle plates and guide plates arranged in a ladder shape, the material to be dried falls on a group of steps in a ladder shape, the material collides back and forth at two sides, the coarse material falls and is discharged, the drying effect of scattering material blocks, fully exposing fine powder and prolonging the retention time of a material curtain at the drying position is achieved, high-temperature airflow passes through the combustion chamber, the fine powder is separated from the material by the airflow and enters a suspension area for heat exchange, the drying effect of the material is ensured in the process, meanwhile, the device adopts the building material structures of red bricks, refractory bricks and the like, the heat dissipation loss is small, the heat efficiency is high, in addition, an air blower is matched with an air distribution plate, the air is polymerized into an air cushion bed to support the coal particles to be fluidized and boiled and combusted, the coal particles are mutually rubbed, collided and cracked, the contact area of the air and the fuel is large, the, the fuel has long residence time, high combustion speed, high burnout rate, energy conservation and environmental protection, can burn various inferior coal fuels with calorific value of more than 6270KJ/kg (1500kcal/kg), reduces the production cost of a factory, also reduces secondary environmental pollution, and finally, the device has compact structure, small floor area, can be produced in the open air and saves the cost.

Drawings

FIG. 1 is a front view of the present invention;

fig. 2 is a schematic view of a baffle and baffle of the present invention.

Wherein: 1. a drying assembly; 2. a coal delivery assembly; 3. a dust collection assembly; 4. a diffusion cyclone; 5. an air chute conveyor; 6. a combustion chamber; 7. a coal-fired inlet; 8. a wind distribution plate; 9. a blower; 10. a hopper; 11. a baffle; 12. a baffle plate; 13. a flue gas inlet zone; 14. a suspension zone; 15. a blanking hopper; 16. a chute fan; 17. an air outlet pipe; 18. a slag discharge hole; 19. drying the raw material conveyor; 20. red brick; 21. a refractory brick; 22. a coal-fired conveyor; 23. a crusher; 24. a hoist; 25. a storage tank; 26. a magnetic iron remover; 27. weighing the coal feeding amount; 28. a heat-resistant dew-resistant bag type dust collector; 29. a filter material conveyor; 30. an exhaust window; 31. an air locking discharger; 32. an induced draft fan; 33. an automatic regulating valve.

Detailed Description

In order to further understand the present invention, the following detailed description will be made with reference to the following examples, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.

According to the drawings 1 and 2, the embodiment provides a suspension type powder dryer, which comprises a drying component 1, a coal-fired conveying component 2 and a dust collecting component 3, wherein the drying component 1 comprises a drying bin, a diffusion type cyclone dust collector 4 and an air chute conveyor 5, the diffusion type cyclone dust collector 4 is arranged at the right side position of the drying bin, the air chute conveyor 5 is arranged below the drying bin, a combustion chamber 6 is arranged at the left side inside the drying bin, a coal-fired inlet 7 is arranged at the left side of the combustion chamber 6, an air distribution plate 8 is arranged at the bottom inside the combustion chamber 6, an air blower 9 is communicated at the lower position of the combustion chamber 6 through an air blast pipe, a hopper 10 is arranged at the middle position of the top of the drying bin, a guide plate 11 and a baffle plate 12 are respectively arranged at the two sides below a discharge port of the hopper 10, the guide plate 11 and the baffle plate 12 are respectively provided with a plurality, and the guide plate 11 and the baffle plate 12 are arranged in the drying bin in a step-shaped inclined manner, the left side position of the guide plate 11 is a flue gas inlet area 13, and the right side position of the baffle plate 12 is a suspension area 14.

The right-hand member of stoving storehouse bottom is equipped with blanking fill 15, and blanking fill 15's output and air chute conveyer 5 intercommunication, the left end of air chute conveyer 5 below is equipped with chute fan 16, and chute fan 16's output and air chute conveyer 5 intercommunication.

The right-hand member at stoving storehouse top is equipped with the air exit, and is equipped with out tuber pipe 17 on the air exit, go out tuber pipe 17 and one side intercommunication of diffusion formula cyclone 4, the lower extreme blanking end and the air chute conveyer 5 intercommunication of diffusion formula cyclone 4.

The drying device is characterized in that a slag discharge hole 18 is formed below the air distribution plate 8, a drying bin extends out of the lower end of the slag discharge hole 18, a drying raw material conveyor 19 is arranged above the drying bin, the discharge end of the drying raw material conveyor 19 faces the hopper 10, the drying bin is composed of red bricks 20, the periphery of the red bricks is hooped, and refractory bricks 21 are lined on the inner side of the red bricks 20.

The coal conveying assembly 2 comprises a coal conveyor 22, a crusher 23, a lifter 24 and a storage tank 25, the output end of the coal conveyor 22 is communicated with the crusher 23, the output end of the crusher 23 is communicated with the lifter 24, and the output end of the lifter 24 is communicated with the storage tank 25.

The coal conveyor 22 is provided with a magnetic iron remover 26, the discharge hole of the storage tank 25 is provided with a coal feeding metering scale 27, and the discharge hole of the coal feeding metering scale 27 is communicated with the coal inlet 7.

Dust collecting assembly 3 includes heat-resisting anti-dew bag collector 28, filter material conveyer 29 and exhaust window 30, the top of diffusion formula cyclone 4 is given vent to anger the end and is passed through air duct and heat-resisting anti-dew bag collector 28 intercommunication, and the bottom blanking end of heat-resisting anti-dew bag collector 28 is equipped with lock wind tripper 31, lock wind tripper 31's output is towards filter material conveyer 29, and filter material conveyer 29's output and air chute conveyer 5 intercommunication.

The air outlet end of the heat-resistant anti-condensation bag type dust collector 28 is communicated with an induced draft fan 32, the induced draft fan 32 is communicated with an exhaust window 30 through a conduit, and an automatic regulating valve 33 is arranged on the conduit.

The baffle plate 12 and the guide plate 11 are fixedly installed in the drying bin through bolts, and the baffle plate 12 and the guide plate 11 are both made of heat-resistant alloy steel through casting. The baffle plates 12 and the guide plates 11 have the functions of guiding and guiding, the inclination angles of each baffle plate 12 and each guide plate 11 are adjustable through the bolt effect, so that the air pressure of the material curtain at the section of the whole scattering position is balanced, the evaporation intensity of drying is ensured, the whole drying bin is completely scattered, lifted, conveyed and sorted by wind power, and the production process can be adjusted randomly according to the optimal working condition parameters.

When in use, fire coal is crushed into particles with the particle size of less than 10mm by a coal-fired conveyor 22 and a crusher 23, the particles are quantitatively and uniformly conveyed into a combustion chamber 6 by a lifter 24 and a coal feeding metering scale 27, high-pressure air of an air blower 9 is injected into a hearth from a plurality of hood pores on an air distribution plate 8, the scattered air of each party is polymerized into an air cushion bed to support coal particles to be fluidized and boiled and combusted, the coal particles and coal slag jump up and down in a high-temperature state, are rubbed with each other, collide and cracked, and are conveyed from small to large until burnt to generate high-temperature air flow, meanwhile, raw materials to be dried (such as fly ash, desulfurized gypsum and the like) are prepared to be conveyed into a yard to be naturally dried and dried until the moisture content is 15 percent (the lower the moisture content of the dried materials is better) and then conveyed to a hopper 10 by a dried raw material conveyor 19 to fall into a drying bin to form a material curtain, and the high-temperature air flow entering the combustion, the materials are scattered by the stepped inclined baffle plate 12 and the guide plate 11, the materials collide back and forth on two sides, the materials are scattered into blocks, fine powder is fully exposed, the retention time of a material curtain at a drying position is prolonged, the coarse materials fall along the guide plate 11 and are discharged to the air chute conveyor 5, the scattered powder forms a suspension state in a suspension area 14 under the action of hot gas and is subjected to full heat exchange, dried material-carrying gas is discharged from an air outlet and enters the diffusion type cyclone dust collector 4 for separation, the materials and the gas are separated, the materials fall into the air chute conveyor 5 to be conveyed out for storage, dust-containing gas enters the heat-resistant anti-dew bag type dust collector 28 for filtration and dust removal, the materials reach the standard and are discharged, the filtered materials fall into the filter material conveyor 29 and are discharged into the air chute conveyor 5 to be conveyed out for storage.

The suspension type powder dryer is internally provided with no rotating part and mainly comprises baffle plates 12 and guide plates 11 which are arranged in a ladder shape, materials to be dried fall on a group of steps in a ladder shape, the materials collide back and forth on two sides, coarse materials fall and are discharged to achieve the drying effect of scattering blocks, fully exposing fine powder and prolonging the retention time of a material curtain at the drying position, high-temperature airflow passes through the drying effect by burning in a combustion chamber 6, the fine powder is separated from the materials by the airflow and enters a suspension area 14 for heat exchange, in the process, the drying effect of the materials is ensured, meanwhile, the device adopts the structures of red bricks 20, refractory bricks 21 and other building materials, the heat dissipation loss is small, the heat efficiency is high, in addition, an air blower 9 is adopted to be matched with an air distribution plate 8 to polymerize air into an air cushion bed to support the coal particles to be fluidized and boiled and burnt, the mutual friction, collision and cracking are realized, the contact area of air and fuel, the relative movement speed is high, the fuel retention time is long, the combustion speed is high, the burnout rate is high, the energy is saved, the environment is protected, various inferior coal fuels with the calorific value of more than 6270KJ/kg (1500kcal/kg) can be combusted, the production cost of a factory is reduced, the secondary environmental pollution is also reduced, and finally, the equipment has a compact structure and small floor area, can be used for outdoor production, and saves the cost.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.