System for preparing fine powder mixed slurry
By designing and preparing a fine powder mixing system in the production of building ceramics, the problems of fine powder to slurry ratio control and high energy consumption of drying tower were solved, achieving efficient utilization of system energy and reduction of desulfurization and denitrification agents.
Patent Information
- Application Number
- CN202520004646.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-02
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-01-02
AI Technical Summary
In the production of building ceramics, it is difficult to control the mixing ratio of fine powder and slurry. Temperature changes inside the drying tower affect the drying speed, and the waste heat of the exhaust gas from the drying tower is not fully utilized, resulting in high energy consumption and a large amount of desulfurization and denitrification agents used.
A system for preparing fine powder slurry was designed, including a drying tower, a powder collection channel, a slurry circulation system, and a waste heat recovery system. By adjusting the ratio of fine powder to slurry, the temperature control of the drying tower is optimized, and waste heat recovery is used to reduce energy consumption and the amount of desulfurization and denitrification agents used.
It achieves precise control of the ratio of fine powder to slurry, reduces the energy consumption of the drying tower and the use of desulfurization and denitrification agents, and improves the energy utilization efficiency of the system.
Smart Images
Figure CN223726819U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to ceramic production technical field, and specifically is a system of preparation fine powder mixed slurry. BACKGROUND
[0002] In the production process of building ceramics, ceramic slurry needs to be dried to make powder, and then fine powder mixed slurry is carried out again. Most manufacturers use spray drying tower powdering process. In the spray drying process, the slurry is sprayed into the spray drying tower, and the slurry is atomized and dried in a short time, so that the atomized particles naturally shrink into circular particles, thereby making powder.
[0003] In the whole fine powder mixed slurry system, the following problems exist:
[0004] 1. In the process of mixing the fine powder produced, the mixing ratio of the fine powder and the slurry is difficult to control smoothly.
[0005] 2. In the working of the drying tower, the temperature change in the inside will change the drying speed of the slurry. When the internal temperature is high, but the slurry conveying amount is low, it will cause the consumption of energy in the inside of the drying tower.
[0006] 3. In the process of recovering the tail gas of the drying tower, a large amount of waste heat is generated due to the use of coal stove and other devices, and a large amount of desulfurization and denitrification agent is needed when the oxygen content in the inside of the drying tower is high. INVENTION CONTENTS
[0007] The utility model aims at providing a system for preparing fine powder mixed slurry to solve the problems in the background technology.
[0008] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:
[0009] A system for preparing fine powder mixed slurry, comprising a drying tower, a powder collecting channel is arranged in the drying tower, a fine powder mixed slurry system is communicated with the powder collecting channel, a slurry circulating pipe is arranged in the middle of the drying tower, a slurry circulating system is communicated with the slurry circulating pipe, an opening is formed in the top of the drying tower, and a waste heat recovery system is communicated with the opening.
[0010] As a further scheme of the utility model: the fine powder mixed slurry system comprises a cyclone dust collector communicated with the powder collecting channel, a spiral feeder and a micro-powder tank are fixedly installed in the cyclone dust collector from top to bottom in sequence and are communicated with each other, a slurry inlet pipe is connected to the micro-powder tank, a transfer tank is communicated with the bottom of the micro-powder tank, a slurry return pipeline is communicated with the lower end of the transfer tank, a slurry return pump is arranged on the slurry return pipeline, and a servo tank one, a fine powder cluster dispersing machine and a homogenizing tank are sequentially communicated from right to left on the slurry return pipeline.
[0011] As a further scheme of the present utility model: the mud circulating system includes a buffer tank, the upper end left side of the buffer tank is communicated with the outlet of the mud circulating pipe, the buffer tank is sequentially communicated with a delivery pump and a drying tower upper portion, the upper end right side of the buffer tank is sequentially communicated with a servo tank two, a mud circulating pump and a mud circulating pipe inlet.
[0012] As a further scheme of the present utility model: the waste heat recovery system includes a heat dust remover and a coal stove communicated with an opening, the lower end of the coal stove is communicated with a combustion air fan, the suction port of the combustion air fan is communicated with a waste heat pipeline, the top of the coal stove is provided with a smoke exhaust air path, and the smoke exhaust air path is communicated with the waste heat pipeline.
[0013] To sum up, the present utility model has the beneficial effects that: the fine powder mixing system can effectively adjust the ratio of fine powder amount and mud amount, the mud circulating system can adjust the mud entering amount according to the drying tower internal temperature and other conditions, reduce the drying tower internal fuel loss, the waste heat recovery system can use waste heat by backflow of flue gas, reduce the drying tower system oxygen amount, and reduce the use amount of denitration and desulfurization agent. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a structure diagram of the fine powder mixing system and the waste heat recovery system.
[0015] Figure 2 It is a structure diagram of the mud circulating system.
[0016] In the drawing: 1, drying tower; 2, powder collecting channel; 3, opening; 4, cyclone dust collector; 5, fine powder tank; 6, screw feeder; 7, slurry inlet pipe; 8, transfer tank; 9, slurry reversing pump; 10, slurry reversing pipeline; 11, servo tank one; 12, fine powder group dispersing machine; 13, homogenizing pool; 14, heat dust remover; 15, coal stove; 16, combustion air fan; 17, waste heat pipeline; 18, smoke exhaust air path; 19, mud circulating pipe; 21, delivery pump; 22, buffer tank; 23, mud circulating pump; 24, servo tank two. DETAILED DESCRIPTION
[0017] The technical scheme in the embodiments of the present utility model will be apparently and completely described in combination with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the present utility model.
[0018] EMBODIMENT
[0019] Please refer to Figures 1-2 For example Figure 1As shown, a system for preparing fine powder slurry includes a drying tower 1, a powder collection channel 2 is arranged in the drying tower 1, and a fine powder slurry system is communicated with the powder collection channel 2, the fine powder slurry system includes a cyclone dust collector 4 communicated with the powder collection channel 2, a screw feeder 6 and a fine powder tank 5 are sequentially and fixedly arranged at the lower end of the cyclone dust collector 4 in sequence and communicated with each other, an inlet pipe 7 is externally connected to the fine powder tank 5, a transfer tank 8 is communicated with the bottom of the fine powder tank 5, a slurry return pipeline 10 is communicated with the lower end of the transfer tank 8, a slurry return pump 9 is arranged on the slurry return pipeline 10, a servo tank one 11, a fine powder lump dispersing machine 12 and a homogenizing tank 13 are sequentially communicated with the slurry return pipeline 10 from right to left, in the use process, the drying tower 1 dries the slurry sprayed in the slurry circulating pipe 19 into slurry powder, the cyclone dust collector 4 quantitatively collects the slurry powder into the fine powder tank 5 through the screw feeder 6, the slurry with different water content is mixed in the fine powder tank 5, and then is transported to the servo tank one 11, the fine powder lump dispersing machine 12 and the homogenizing tank 13 according to specific requirements through the slurry return pump 9.
[0020] A slurry circulating system is communicated with the slurry circulating pipe 19 arranged in the middle of the drying tower 1, the slurry circulating system includes a buffer tank 22, the upper end left side of the buffer tank 22 is communicated with the outlet of the slurry circulating pipe 19, the buffer tank 22 is sequentially communicated with a delivery pump 21 and the upper part of the drying tower 1, the upper end right side of the buffer tank 22 is sequentially communicated with a servo tank two 24, a slurry circulating pump 23 and the inlet of the slurry circulating pipe 19, the delivery speed of the slurry is adjusted through the slurry circulating pump 23, a new slurry inlet point is added through the delivery pump 21, and the slurry inlet amount is adjusted according to the internal temperature of the drying tower and the like.
[0021] An opening 3 is arranged at the top of the drying tower 1, a waste heat recovery system is communicated with the opening 3, the waste heat recovery system includes a heat dust collector 14 and a coal furnace 15 communicated with the opening 3, preferably, the coal furnace 15 can be a pulverized coal furnace or a coal water slurry furnace, the lower end of the coal furnace 15 is communicated with a combustion air fan 16, the suction port of the combustion air fan 16 is communicated with a waste heat pipeline 17, the top of the coal furnace 15 is provided with a smoke exhaust air path 18, the smoke exhaust air path 18 is communicated with the waste heat pipeline 17, the combustion air fan 16 can suck the gas in the smoke exhaust air path 18 back into the coal furnace 15 through the waste heat pipeline, the flue gas is backflowed, the waste heat is utilized, the oxygen amount of the drying tower system is reduced, and the use amount of the denitration and desulfurization agent is reduced.
[0022] It should be noted that the above embodiments are only for specifically and clearly describing the technical solutions and technical features of the present application. For those skilled in the art, the solutions or features belonging to the prior art or common knowledge are not described in detail in the above embodiments.
[0023] In addition, the technical solutions of the present application are not limited to the above-mentioned embodiments. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.
Claims
1. A system for preparing a fine powder slurry, characterized by, Including dry tower (1), the dry tower (1) is provided with powder collection channel (2), the powder collection channel (2) is communicated with fine powder mixed slurry system, the dry tower (1) middle part is provided with slurry circulation pipe (19), the slurry circulation pipe (19) is communicated with slurry circulation system, the dry tower (1) top is provided with opening (3), the opening (3) is communicated with waste heat recovery system.
2. A system for preparing a slurry of fine powder according to claim 1, characterized in that, The fine powder mixed slurry system includes cyclone (4) communicated with powder collection channel (2), the cyclone (4) is fixedly installed with spiral feeder (6) and micro powder tank (5) communicated with each other from top to bottom in sequence, the micro powder tank (5) is connected with slurry inlet pipe (7), the micro powder tank (5) bottom is communicated with transfer tank (8), the transfer tank (8) lower end is communicated with slurry return pipe (10), the slurry return pipe (10) is provided with slurry return pump (9), the slurry return pipe (10) is communicated with servo tank one (11), fine powder group dispersing machine (12) and homogenization pool (13) from right to left in sequence.
3. A system for preparing a slurry of fine powder according to claim 2, characterized in that, The slurry circulation system includes buffer tank (22), the upper end left side of the buffer tank (22) is communicated with the outlet of slurry circulation pipe (19), the buffer tank (22) is communicated with conveying pump (21) and dry tower (1) upper part in sequence, the upper end right side of the buffer tank (22) is communicated with servo tank two (24), slurry circulation pump (23) and slurry circulation pipe (19) inlet in sequence.
4. A system for preparing a slurry of fine powder according to claim 3, characterized in that, The waste heat recovery system includes heat precipitator (14) and coal stove (15) communicated with opening (3), the coal stove (15) lower end is communicated with combustion air fan (16), the suction port of the combustion air fan (16) is communicated with waste heat pipe (17), the coal stove (15) top is provided with smoke exhaust air path (18), the smoke exhaust air path (18) is communicated with waste heat pipe (17).