阅读说明：本技术 一种生化药渣掺烧处理结构 (Biochemical dregs of a decoction mix burning processing structure ) 是由 方朝君 姚啸林 刘鹏 张庚 陈嵩涛 于 2021-07-23 设计创作，主要内容包括：本发明提供一种生化药渣掺烧处理结构,包括：生化药渣储仓和燃煤输送器,所述生化药渣储仓一端设有生化药渣进料口,所述生化药渣储仓另一端与生化药渣上料件连接,所述生化药渣上料件与混料器一端连接以能够将生化药渣输送进所述混料器中,所述燃煤输送器与所述混料器一端连接以能够将燃煤输送进所述混料器中,所述混料器内部设有多层导料板,所述导料板用于将生化药渣与燃煤掺混；不仅降低了设备的投入成本,运行安全、维护简便、适应性强,更降低了生化药渣掺烧的环境风险与对锅炉燃烧的影响,环境友好。(The invention provides a biochemical medicine residue blending combustion processing structure, which comprises: the biochemical medicine residue storage bin is provided with a biochemical medicine residue feeding hole at one end, the other end of the biochemical medicine residue storage bin is connected with a biochemical medicine residue feeding part, the biochemical medicine residue feeding part is connected with one end of a mixer so as to convey biochemical medicine residues into the mixer, the coal-fired conveyor is connected with one end of the mixer so as to convey coal into the mixer, and a plurality of layers of material guide plates are arranged inside the mixer and used for mixing the biochemical medicine residues with the coal; the method has the advantages of reducing the investment cost of equipment, being safe to operate, simple and convenient to maintain, strong in adaptability, reducing the environmental risk of blending and burning the biochemical medicine residues and the influence on boiler combustion, and being environment-friendly.)

1. A biochemical medicine dreg blending combustion processing structure is characterized by comprising: biochemical dregs of a decoction storehouse (1) and coal-fired conveyer (6), biochemical dregs of a decoction storehouse (1) one end is equipped with biochemical dregs of a decoction feed inlet (2), biochemical dregs of a decoction storehouse (1) other end is connected with biochemical dregs of a decoction material loading member (3), biochemical dregs of a decoction loading member (3) are connected with blender (4) one end in order to be able to advance biochemical dregs of a decoction conveying in blender (4), coal-fired conveyer (6) with blender (4) one end is connected in order to advance with coal-fired conveying in blender (4), blender (4) inside is equipped with multilayer stock guide (41), stock guide (41) are used for mixing biochemical dregs of a decoction and coal-fired.

2. The biochemical medicine residue blending combustion processing structure as claimed in claim 1, wherein the material guiding plate (41) is connected to the inner side wall of the mixer (4), and the material guiding plate (41) is arranged along the height direction of the mixer (4).

3. The biochemical medicine residue blending combustion processing structure as claimed in claim 2, wherein the outer surface of the material guide plate (41) is polished, and an included angle between the material guide plate (41) and the horizontal direction of the inner side wall of the mixer (4) correspondingly arranged is 45-60 °.

4. The biochemical medicine residue blending combustion processing structure as claimed in claim 1, wherein the inner wall surface of the biochemical medicine residue storage bin (1) is provided with an HDPE film layer, a cement mortar layer and a clay layer in sequence from inside to outside.

5. The biochemical medicine residue co-combustion processing structure according to claim 1, wherein the biochemical medicine residue feeding member (3) comprises: hydraulic pressure plunger pump (31), hydraulic drive subassembly (32) and feeding tube (33), hydraulic pressure plunger pump (31) set up in biochemical dregs of a decoction storehouse (1) other end, hydraulic pressure plunger pump (31) with feeding tube (33) are connected, feeding tube (33) with blender (4) intercommunication, hydraulic pressure plunger pump (31) with hydraulic drive subassembly (32) are connected, hydraulic drive subassembly (32) are used for driving hydraulic pressure plunger pump (31) will biochemical dregs of a decoction in biochemical dregs of a decoction storehouse (1) pass through feeding tube (33) transmission advances in blender (4).

6. The biochemical medicine residue blending combustion processing structure according to claim 1, wherein an electric shutter door (5) is arranged on the biochemical medicine residue feeding port (2), and the electric shutter door (5) is movably connected with the biochemical medicine residue feeding port (2).

7. The biochemical medicine residue blending combustion processing structure according to claim 2, wherein a blend outlet chute (43) is arranged at the other end of the mixer (4), a uniform distribution grid (42) is connected inside the mixer (4), and the uniform distribution grid (42) is arranged between the blend outlet chute (43) and the material guide plate (41).

8. The biochemical medicine residue blending combustion processing structure according to claim 7, comprising: the fully-closed conveying belt (7), the blend outlet chute (43) and the fully-closed conveying belt (7) correspond to each other and are mutually matched, and the fully-closed conveying belt (7) and the mixing storage bin (8) correspond to each other and are mutually matched to transmit the blend into the mixing storage bin (8).

9. The biochemical medicine residue blending combustion processing structure according to claim 8, comprising: the mixing device comprises a mixing feeder (9) and a circulating fluidized bed boiler (10), wherein the mixing storage bin (8) is communicated with the circulating fluidized bed boiler (10) through the mixing feeder (9).

10. The biochemical medicine residue co-combustion processing structure according to claim 9, wherein a secondary air box (13) of a circulating fluidized bed is arranged on the circulating fluidized bed boiler (10), the secondary air box (13) of the fluidized bed is communicated with the inside of the circulating fluidized bed boiler (10), the biochemical medicine residue storage bin (1) is communicated with the secondary air box (13) of the fluidized bed through a biochemical medicine residue odor conveying pipeline (12), a negative pressure exhaust fan (11) is arranged on the biochemical medicine residue odor pipeline (12), and the negative pressure exhaust fan (11) is used for exhausting the biochemical medicine residue odor inside the biochemical medicine residue storage bin (1).

Technical Field

The invention relates to the technical field of solid waste treatment, in particular to a biochemical medicine residue blending combustion treatment structure.

Background

Along with the attention and investment of people on health, the pharmaceutical industry is rapidly developed, the economic benefit is brought, the biochemical medicine residue problem is generated simultaneously, and the brought environmental and social influences are more and more prominent.

The biochemical medicine dregs mainly comprise pharmaceutical sludge, fungus dregs and the like, the water content is generally over 75 percent, the calorific value is low, the medicine smell which is difficult to degrade and emit is unpleasant, and the potential pathogenic risk is also realized. Therefore, the safe and resource disposal of the biochemical dregs is an important subject affecting the development of the industry.

In view of the good combustion performance of the circulating fluidized bed boiler and the strong adaptability to fuels, the biochemical medicine residues are mixed into the fire coal and sent into the circulating fluidized bed boiler for combustion disposal, so that the method is a safe and effective reduction disposal way and has practical production significance for harmless treatment of solid medicine wastes. On the other hand, the biochemical medicine residue is doped, so that the smoke amount is slightly increased, the ash discharge capacity is slightly increased, and the heat loss of smoke exhaust is increased to a certain extent, although the doping of the biochemical medicine residue can bring influence, the loading capacity of the circulating fluidized bed boiler is not obviously interfered, the boiler can normally run with rated load, and the doping and burning of the biochemical medicine residue into the boiler are feasible. The application publication number is CN 102506434A's Chinese patent, need make 37 ~ 41% mixture with dregs of a decoction, coal slime mixture and water addition, send into circulating fluidized bed boiler burning again, whole flow is complicated, has additionally increased the water yield, and is great relatively to boiler efficiency influence.

In view of the characteristics of high water content, difficult degradation, bad smell, potential pathogenic risk and the like of biochemical medicine residues, the problems of storage, seepage prevention, closed transportation, uniform mixing and the like need to be considered during blending and burning.

Disclosure of Invention

In order to solve the technical problems, the invention provides a biochemical medicine residue co-combustion treatment structure which is safe to operate, simple and convenient to maintain, high in adaptability, environment-friendly and capable of reducing the environmental risk of the co-combustion of biochemical medicine residues and the influence on boiler combustion, and reduces the investment cost of equipment.

In order to achieve the purpose, the technical scheme of the invention is as follows:

the invention provides a biochemical medicine residue blending combustion processing structure, which comprises: biochemical dregs of a decoction storehouse and coal-fired conveyer, biochemical dregs of a decoction storehouse one end is equipped with biochemical dregs of a decoction feed inlet, biochemical dregs of a decoction storehouse other end is connected with biochemical dregs of a decoction material loading member, biochemical dregs of a decoction material loading member is connected with blender one end in order to be able to with biochemical dregs of a decoction conveying advance in the blender, coal-fired conveyer with blender one end is connected in order to be able to carry the coal into in the blender, the inside multilayer stock guide that is equipped with of blender, the stock guide is used for mixing biochemical dregs of a decoction with the coal.

The invention provides a biochemical medicine residue co-combustion treatment structure, which not only reduces the investment cost of equipment, has safe operation, simple and convenient maintenance and strong adaptability, but also reduces the environmental risk of the biochemical medicine residue co-combustion and the influence on boiler combustion, and is environment-friendly.

As a preferred technical scheme, the material guide plate is connected to the inner side wall of the mixer, and the material guide plate is arranged along the height direction of the mixer.

As a preferred technical scheme, the outer surface of the material guide plate is subjected to polishing treatment.

As a preferred technical scheme, an included angle between the material guide plate and the horizontal direction of the inner side wall of the material mixer arranged correspondingly to the material guide plate is 45-60 degrees.

As a preferred technical scheme, an HDPE film layer, a cement mortar layer and a clay layer are sequentially arranged on the surface of the inner wall of the biochemical medicine residue storage bin from inside to outside.

As a preferred technical scheme, the biochemical medicine residue feeding part comprises: the biochemical medicine residue storage bin comprises a hydraulic plunger pump, a hydraulic driving assembly and a feeding pipe, wherein the hydraulic plunger pump is arranged at the other end of the biochemical medicine residue storage bin, the hydraulic plunger pump is connected with the feeding pipe, the feeding pipe is communicated with the mixer, the hydraulic plunger pump is connected with the hydraulic driving assembly, and the hydraulic driving assembly is used for driving the hydraulic plunger pump to transmit biochemical medicine residues in the biochemical medicine residue storage bin into the mixer through the feeding pipe.

According to a preferable technical scheme, an electric shutter door is arranged on the biochemical medicine residue feeding hole and is movably connected with the biochemical medicine residue feeding hole.

According to a preferable technical scheme, a blend outlet chute is formed in the other end of the mixer, and uniformly distributed grids are connected to the interior of the mixer and arranged between the blend outlet chute and the material guide plate.

The preferable technical scheme comprises the following steps: the fully-closed conveying belt is characterized in that the fully-closed conveying belt is provided with a blend outlet chute, the blend outlet chute is corresponding to the fully-closed conveying belt and is matched with the fully-closed conveying belt, and the fully-closed conveying belt is corresponding to the blend storage bin and is matched with the blend storage bin to transmit the blend into the blend storage bin.

The preferable technical scheme comprises the following steps: the mixing storage bin is communicated with the circulating fluidized bed boiler through the mixing feeder.

As a preferred technical scheme, the biochemical medicine dreg blending combustion processing structure is a whole-course closed structure.

As preferred technical scheme, be equipped with circulating fluidized bed's secondary bellows on the circulating fluidized bed boiler, the secondary bellows of fluidized bed with the inside intercommunication of circulating fluidized bed boiler, biochemical dregs of a decoction warehouse pass through biochemical dregs of a decoction smell pipeline with the secondary bellows intercommunication of fluidized bed, be equipped with the negative pressure air exhauster on the biochemical dregs of a decoction smell pipeline, the negative pressure air exhauster is used for taking out the inside biochemical dregs of a decoction smell in biochemical dregs of a decoction warehouse.

The invention provides a biochemical medicine residue blending combustion treatment structure which has the following beneficial effects:

1) the invention provides a biochemical medicine residue blending combustion treatment structure, solves the problem of coupling treatment of biochemical medicine residues by a circulating fluidized bed boiler, and is suitable for new construction projects.

2) The invention provides a biochemical medicine residue blending combustion processing structure which is simple in structure, safe and reliable, realizes blending of fire coal and biochemical medicine residues in a falling and conveying process by means of gravity, is energy-saving and is convenient to maintain and overhaul.

3) The invention provides a biochemical medicine residue blending combustion treatment structure, which considers the safety of biochemical medicine residue storage and the prevention and control of medicine smell, and realizes the safety and environmental protection by designing the structure of full-flow closed conveying of biochemical medicine residues from entering to entering a furnace.

4) The invention provides a biochemical medicine residue blending combustion processing structure, the feeding of a process system is designed to be controlled in an interlocking manner, the automation degree is high, and the biochemical medicine residue blending combustion processing structure can be remotely adjusted and controlled on the spot.

Drawings

Fig. 1 is a structural diagram of a biochemical medicine residue blending combustion processing structure.

Wherein: 1-biochemical medicine residue storage; 2-biochemical medicine residue feed inlet; 3-biochemical medicine residue feeding part; 31-a hydraulic plunger pump; 32-a hydraulic drive assembly; 33-a feeding pipe; 4-a mixer; 41-a material guide plate; 42-uniformly distributing grids; 43-blend outlet chute; 5-electric gate board door; 6-coal conveyor, 7-totally enclosed conveyer belt; 8-mixing and storing in a bin; 9-mixing and feeding machine; 10-circulating fluidized bed boiler; 11-a negative pressure exhaust fan; 12-biochemical medicine residue odor conveying pipeline; 13-secondary windbox of circulating fluidized bed; 14-local control cabinet; 15-control circuit.

Detailed Description

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

It can be understood that the object of the present invention is achieved by some embodiments, as shown in fig. 1, a biochemical medicine residue blending combustion processing structure, comprising: a biochemical medicine residue storage bin 1, a biochemical medicine residue feeder (not shown), a biochemical medicine residue feeding part 3, a coal-fired conveyor 6 and a mixer 4; one end of the biochemical medicine residue storage bin 1 is provided with a biochemical medicine residue feeding port 2, the other end of the biochemical medicine residue storage bin 1 is connected with a biochemical medicine residue feeding part 3, the biochemical medicine residue feeding part 3 is connected with one end of a mixer 4 so as to be capable of conveying biochemical medicine residues into the mixer 4, a coal-fired conveyor 6 is connected with one end of the mixer 4 so as to be capable of conveying coal into the mixer 4, a plurality of layers of material guide plates 41 are arranged inside the mixer 4, the material guide plates 41 are used for mixing biochemical medicine residues with the coal, the material guide plates 41 are connected to the inner side wall of the mixer 4, and the material guide plates 41 are arranged along the height direction of the mixer 4; the outer surface of the material guide plate 41 is subjected to polishing treatment; the included angle between the material guide plate 41 and the horizontal direction of the inner side wall of the material mixer 4 correspondingly arranged is 45-60 degrees; biochemical dregs of a decoction material loading spare 3 includes: hydraulic pressure plunger pump 31, hydraulic drive subassembly 32 and material loading pipe 33, hydraulic pressure plunger pump 31 set up in biochemical dregs of a decoction warehouse 1 other end, hydraulic pressure plunger pump 31 with material loading pipe 33 is connected, material loading pipe 33 with blender 4 intercommunication, hydraulic pressure plunger pump 31 with hydraulic drive subassembly 32 is connected, hydraulic drive subassembly 32 is used for driving hydraulic pressure plunger pump 31 will biochemical dregs of a decoction in biochemical dregs of a decoction warehouse 1 pass through material loading pipe 33 transmission enters in the blender 4.

The material guide plates 41 are preferably 2-5 groups.

Biochemical medicine residues are conveyed to a biochemical medicine residue feeder (not shown) in a sealing mode through a vehicle, the biochemical medicine residues in the biochemical medicine residue feeder (not shown) enter a biochemical medicine residue storage bin 1 for temporary storage through an electric gate 5, and the temporary stored biochemical medicine residues drive a hydraulic plunger pump 31 through a hydraulic driving assembly 32 to convey the biochemical medicine residues in the biochemical medicine residue storage bin 1 into the mixer 4 through a feeding pipe 33; the coal conveyor 6 preferably selects a coal conveying belt, the coal is conveyed into the mixer 4 through the coal conveying belt, the biochemical medicine residues and the coal are conveyed into the mixer 4, the biochemical medicine residues and the coal are mixed under the action of self gravity in the falling process of the biochemical medicine residues and the coal through the surface cutting light guide plate 41, and the biochemical medicine residues and the coal enter the mixer 4 from the top of the mixer 4; biochemical medicine dregs and fire coal enter the mixer 4, and due to the action of self gravity, in the process that the biochemical medicine dregs and the fire coal fall simultaneously, the conveying flow direction is changed by cutting the light guide plate 41 on the surface, so that the mixing of two materials in the falling process of the biochemical medicine dregs and the fire coal is realized.

The biochemical medicine residue storage bin 1 adopts an underground arrangement mode, so that unloading is convenient. The inner wall surface of the biochemical medicine residue storage bin 1, the inner wall surface of the mixer 4 and the inner wall surface of the mixing storage bin 8 are respectively provided with an impermeable layer, and the impermeable layers are a high-density polyethylene HDPE film with the thickness of 2 mm-4 mm, a cement mortar layer with the thickness of 30 mm-60 mm and a clay layer with the thickness of 1.0m from inside to outside in sequence, so that the impermeable requirement of hazardous waste storage pollution control standard (GB18597) can be met.

As shown in fig. 1, a biochemical medicine residue blending combustion processing structure further includes: the mixing storage bin 8, the circulating fluidized bed boiler 10, the negative pressure exhaust fan 11 and the biochemical medicine residue odor conveying pipeline 12, the valve and the electric device are corresponding to and matched with the negative pressure exhaust fan 11; a blend outlet chute 43 is arranged at the other end of the mixer 4, an evenly distributed grating 42 is connected inside the mixer 4, and the evenly distributed grating 42 is arranged between the blend outlet chute 43 and the material guide plate 41; the blend outlet chute 43 corresponds to and is matched with the fully-closed conveying belt 7, and the fully-closed conveying belt 7 corresponds to and is matched with the mixing storage bin 8 to convey the blend into the mixing storage bin; the mixing storage bin 8 is communicated with the circulating fluidized bed boiler 10 through the mixing feeder 9; be equipped with circulating fluidized bed's secondary bellows 13 on circulating fluidized bed boiler 10, the secondary bellows 13 of fluidized bed with the inside intercommunication of circulating fluidized bed boiler 10, biochemical dregs of a decoction storehouse 1 through biochemical dregs of a decoction smell pipeline 12 with the secondary bellows 13 intercommunication of fluidized bed, be equipped with negative pressure air exhauster 11 on the biochemical dregs of a decoction smell pipeline 12, negative pressure air exhauster 11 is used for taking out biochemical dregs of a decoction smell of biochemical dregs of a decoction storehouse 1 inside.

Biochemical medicine residues and raw coal are mixed to obtain mixed materials, the mixed materials are uniformly distributed through a uniformly-distributed grid 42 at the bottom of the mixer 4, fall onto a fully-closed conveying belt 7 from a mixed material outlet chute 43, are conveyed into a mixed material storage bin 8, and are conveyed into a circulating fluidized bed boiler 10 for combustion through a mixed material feeder 9 in a whole closed state.

The biochemical medicine residue smell generated by the biochemical medicine residue in the biochemical medicine residue storage bin 1 is extracted by the negative pressure exhaust fan 11, is injected into the secondary air box 13 of the circulating fluidized bed by the negative pressure exhaust fan 11, and enters the circulating fluidized bed boiler 10 for combustion through the secondary air box 13 of the circulating fluidized bed.

As shown in fig. 1, a biochemical medicine residue blending combustion processing structure further includes: the biochemical medicine residue storage bin comprises an on-site control cabinet 14 and a control circuit 15, wherein a biochemical medicine residue feeding hole 2 is formed in the top of the biochemical medicine residue storage bin 1, an electric flashboard door 5 is arranged on the biochemical medicine residue feeding hole 2, and the electric flashboard door 5 is movably connected with the biochemical medicine residue feeding hole 2; the local control cabinet 14 is connected with the electric flashboard door 5 through a control circuit 15, the local control cabinet 14 controls the electric flashboard door 5 to be opened or closed through the control circuit 15, so that the electric flashboard door 5 is opened when unloading is achieved, the electric flashboard door 5 is in a sealed closed state when not unloading is achieved, the operation is convenient, and the escape of the odor of biochemical medicine residues is effectively reduced; the local control cabinet 14 is electrically connected with the negative pressure exhaust fan 11 through a control line 15, and the local control cabinet 14 controls the negative pressure exhaust fan 11 to start and stop through the control line 15, so that the operation is convenient; the local control cabinet 14 is electrically connected with the hydraulic driving assembly 32 through a control line 15, controls the hydraulic driving assembly 32 to start and stop, and is convenient to operate.

For the circulating fluidized bed unit with the actual coal burning amount of 128t/h, when the common coal is burned and the stable coal quality is maintained, the blending burning amount of the biochemical medicine residues with the average water content of 75% is maintained to be 5-20 t/h, the circulating fluidized bed unit can be maintained to normally and stably operate at the rated load of 300MW, and the boiler efficiency is in a descending trend along with the improvement of the blending burning proportion, which is shown in Table 1. When the biochemical medicine dregs are doped by less than 10%, the thermal efficiency of the boiler is reduced by less than 1%.

TABLE 1 boiler efficiency variation at different biochemical drug residue incorporation levels

The invention provides a biochemical medicine residue blending combustion treatment structure which has the following beneficial effects:

1) the invention provides a biochemical medicine residue blending combustion treatment structure, solves the technical problem of coupling treatment of biochemical medicine residues by a circulating fluidized bed boiler, and is suitable for newly-built projects.

2) The invention provides a biochemical medicine residue blending combustion treatment structure which is simple in structure, safe and reliable, realizes blending of fire coal and biochemical medicine residues through the material guide plate by falling under the action of gravity, is energy-saving and is convenient to maintain and overhaul.

3) The invention provides a biochemical medicine residue blending combustion treatment structure, which considers the safety of biochemical medicine residue storage and the prevention and control of medicine smell, and realizes the safety and environmental protection by designing the structure of full-flow closed conveying of biochemical medicine residues from entering to entering a furnace.

4) The invention provides a biochemical medicine residue blending combustion processing structure, the feeding of a process system is designed to be controlled in an interlocking manner, the automation degree is high, and the biochemical medicine residue blending combustion processing structure can be remotely adjusted and controlled on the spot.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all modifications and equivalents falling within the scope of the appended claims. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.