Powder reduction positive pressure drying suspension system for wet powder processing

Abstract

The invention relates to the technical field of wet powder drying, and particularly discloses a wet powder processing powder reduction positive pressure drying suspension system which comprises a drying furnace, a finished product collector, a finished product bin, a combustion machine, a combustion furnace and a control box. The centrifugal fan is connected with the top of one side of the finished product collector through a first connecting pipeline, the bottom of the finished product collector is connected with the finished product bin through the elevator, and the top of the finished product collector is connected with the extension pipe through a second connecting pipeline. Electricity consumption is saved by half, energy is saved, cost is reduced, and production benefits are improved; the production system also solves the problem that the negative pressure production process is unstable, if the system goes wrong, feeding can be continued after feeding is stopped for half a minute, shutdown is not needed, and continuous and stable production is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of wet powder drying, in particular to a wet powder processing powder reduction positive pressure drying suspension system. Background Art

[0002] When processing solid waste wet calcium powder, granite powder, marble powder, ceramic polishing slag and other powders, it is necessary to reduce the dry powder selection powder of the finished wet powder. The existing process has many defects. The specific defects are: 1. The existing equipment process uses a horizontal dryer for drying, then enters the mill for grinding, and then undergoes negative pressure powder selection, but the process cost is high; 2. The existing process needs to process various powder solid wastes, and the powder needs to be dried first, and then a horizontal dryer is required. Then the raw materials after drying have no moisture, and then a set of grinders are used for grinding. If some of the powder wet solid wastes are relatively fine during the grinding process, the grinding of the grinder will only make them coarser and coarser; 3. The existing negative pressure production process has poor stability. When the moisture and temperature cannot keep up, the entire system will be paralyzed; 4. The existing negative pressure production process uses a large fan to discharge the waste steam into the air, resulting in heat waste, and the heat cannot be recycled and reused, which increases the cost; for this purpose, a wet powder processing powder reduction positive pressure drying suspension system is provided. Summary of the invention

[0003] The purpose of the present invention is to provide a wet powder processing powder reduction positive pressure drying suspension system to solve the problems raised by the above background technology in view of the defects of the prior art.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wet powder processing powder reduction positive pressure drying suspension system, comprising a drying furnace, a finished product collector, a finished product bin, a burner and a combustion furnace and a control box, a centrifugal fan is installed on the top of the drying furnace, the centrifugal fan is connected to the top of one side of the finished product collector through a first connecting pipe, the bottom of the finished product collector is connected to the finished product bin through a hoist, the top of the finished product collector is connected to an extension pipe through a second connecting pipe, a third connecting pipe and a fourth connecting pipe are connected to the top circumference of the extension pipe, the fourth connecting pipe is respectively connected to the first dust collector and the second dust collector, the third connecting pipe is connected to the fifth connecting pipe, one end of the fifth connecting pipe is connected to the combustion furnace, the other end of the fifth connecting pipe is connected to the air inlet of the fan, the air outlet of the fan is connected to the drying furnace through the air inlet pipe, and a valve is installed on the third connecting pipe.

[0005] As a preferred technical solution of the present invention, the top of the combustion furnace is connected to the burner through a sixth pipeline, and the interior of the combustion furnace is provided with a refractory wall, a buffer bin, and a sedimentation bin in sequence from top to bottom.

[0006] As a preferred technical solution of the present invention, a feed pipe is installed on the peripheral side of the drying furnace, and the top feed inlet of the feed pipe is connected to the raw material bin through a raw material conveying mechanism.

[0007] As a preferred technical solution of the present invention, an auger is provided inside the elevator and the feed pipe, one end of the auger is connected to the gear in the reduction box, and a second motor is installed on the reduction box.

[0008] As a preferred technical solution of the present invention, a powder classifier is installed at the top of the interior of the drying furnace, and a coarse powder discharge pipe is connected to the bottom side of the powder classifier.

[0009] As a preferred technical solution of the present invention, a scatterer is installed at the inner bottom end of the drying furnace, and the scatterer is connected to the pulley on the first motor main shaft through a belt, and the bottom of the scatterer is connected to a large-particle garbage discharge pipe.

[0010] As a preferred technical solution of the present invention, the raw material conveying and transmission mechanism is composed of a conveyor belt mounting frame, a conveyor belt and a conveyor belt motor.

[0011] As a preferred technical solution of the present invention, the sedimentation bin in the combustion furnace is connected to the fan via a fifth connecting pipe.

[0012] As a preferred technical solution of the present invention, the control box is electrically connected to the raw material conveying mechanism, the first motor, the centrifugal fan, the fan, the elevator and the second motor on the feed pipe respectively.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1: The production system of the present invention is a positive pressure suspension drying production system, which saves half the investment and half the electricity consumption compared with the negative pressure system, thus saving energy, reducing costs and improving production efficiency;

[0015] 2: The production system of the present invention also solves the problem of unstable negative pressure production process. If a problem occurs in the system of the present invention, the feeding only needs to be stopped for half a minute before the feeding can be continued without stopping the machine, thus ensuring continuous and stable production;

[0016] 3: The positive pressure suspension drying production system of the present invention emits less water vapor than the negative pressure system, which is not only more environmentally friendly, but also recycles the waste heat energy of the positive pressure process, making full use of energy consumption and achieving the purpose of energy saving;

[0017] 4: The positive pressure suspension drying production system of the present invention is more environmentally friendly and energy-saving than the traditional horizontal dryer. It can also be used to dry some coarse particles and can replace the traditional horizontal dryer to dry most materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 It is a schematic structural diagram of the feed pipe of the present invention.

[0020] In the figure: 1. drying furnace; 2. finished product collector; 3. finished product warehouse; 4. elevator; 5. raw material warehouse; 6. raw material conveying mechanism; 7. feed pipe; 8. first connecting pipe; 9. second connecting pipe; 10. extension pipe; 11. third connecting pipe; 12. fourth connecting pipe; 13. valve; 14. fifth connecting pipe; 15. burner; 16. combustion furnace; 17. fan; 18. air inlet pipe; 19. scatterer; 20. first motor; 21. large particle garbage discharge pipe; 22. coarse powder discharge pipe; 23. first dust collector; 24. second dust collector; 25. centrifugal fan; 26. powder selector; 71. reduction gear box; 72. second motor; 73. auger; 1601. fireproof wall; 1602. buffer warehouse; 1603. sedimentation warehouse. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0022] Example: See Figure 1-2 The present invention provides a technical solution: a wet powder processing powder reduction positive pressure drying suspension system, comprising a drying furnace 1, a finished product collector 2, a finished product bin 3, a burner 15, a combustion furnace 16 and a control box, a centrifugal fan 25 is installed on the top of the drying furnace 1, the centrifugal fan 25 is connected to the top of one side of the finished product collector 2 through a first connecting pipe 8, the bottom of the finished product collector 2 is connected to the finished product bin 3 through a hoist 4, the top of the finished product collector 2 is connected to an extension pipe 10 through a second connecting pipe 9, and a third connecting pipe 11 and a fourth connecting pipe 12 are connected to the top circumference of the extension pipe 10, the fourth connecting pipe 12 is respectively connected to a first dust collector 23 and a second dust collector 24, the third connecting pipe 11 is connected to a fifth connecting pipe 14, one end of the fifth connecting pipe 14 is connected to the combustion furnace 16, and the other end of the fifth connecting pipe 14 is connected to the air inlet of the fan 17, the air outlet of the fan 17 is connected to the drying furnace 1 through an air inlet pipe 18, and a valve 13 is installed on the third connecting pipe 11.

[0023] The top of the combustion furnace 16 is connected to the burner 15 through a sixth pipeline, and the interior of the combustion furnace 16 is provided with a fire-resistant wall 1601, a buffer bin 1602, and a sedimentation bin 1603 in sequence from top to bottom.

[0024] A feed pipe 7 is installed on the peripheral side of the drying furnace 1 , and a top feed inlet of the feed pipe 7 is connected to the raw material bin 5 through a raw material conveying mechanism 6 .

[0025] An auger 73 is provided inside the elevator 4 and the feed pipe 7 . One end of the auger 73 is connected to a gear in a reduction box 71 . A second motor 72 is installed on the reduction box 71 .

[0026] A powder classifier 26 is installed at the top of the drying furnace 1 , and a coarse powder discharge pipe 22 is connected to the bottom side of the powder classifier 26 .

[0027] A scatterer 19 is installed at the inner bottom end of the drying furnace 1. The scatterer 19 is connected to a pulley on the main shaft of the first motor 20 through a belt. The bottom of the scatterer 19 is connected to a large-particle garbage discharge pipe 21.

[0028] The raw material conveying and transmission mechanism 6 is composed of a conveyor belt mounting frame, a conveyor belt and a conveyor belt motor.

[0029] The sedimentation bin 1603 in the combustion furnace 16 is connected to the fan 17 via the fifth connecting pipe 14 .

[0030] The control box is electrically connected to the raw material conveying mechanism 6, the first motor 20, the centrifugal fan 25, the fan 17, the elevator 4 and the second motor 72 on the feed pipe 7, and the control box is used to control the first motor 20, the centrifugal fan 25, the fan 17, the second motor 72 and the conveyor belt motor to power on and operate.

[0031] Working principle: A wet powder processing powder reduction positive pressure drying suspension system. When working, the raw materials in the raw material bin 5 are transported to the feed pipe 7 through the conveyor belt in the raw material conveying and conveying mechanism 6. The second motor 72 at one end of the feed pipe 7 drives the gear in the reduction box 71 to rotate, thereby driving the auger 73 to rotate. The auger 73 rotates to transport the raw materials to the middle of the drying furnace 1 at a certain speed. At the same time, the first motor 20 drives the scatterer 19 to work to scatter the raw materials entering the drying furnace 1. The scattered large particles of garbage are discharged through the large particle garbage discharge pipe. The raw materials in the drying furnace 1 are dried by the fan 17, and the dried raw materials are brought into the powder selecting machine 26 for powder selecting by the hot air and the centrifugal fan 25. The coarse powder is discharged through the coarse powder discharge pipe 22 by the powder selecting machine 26 to achieve the purpose of screening, and then transported to the finished product collector 2 through the first connecting pipe 8. The dried raw materials are collected by the finished product collector 2, and then the dried raw materials are transported and loaded by the elevator 4, and the raw materials are transported to the finished product warehouse 3 for storage. The wind pressure generated at the top of the finished product collector 2 is transported to the extension pipe 10 through the second connecting pipe 9. The air pressure at the bottom of the extension pipe 10 increases, and the fourth connecting pipe 12 is used to suck the water vapor of the extension pipe 10 to the first dust collector 23 and the second dust collector 24 for smaller water vapor discharge, thereby gathering the steam and moisture in the air duct to one point and discharging them through the two dust collectors to achieve the purpose of environmental protection and pollution-free. The heat-containing wind remaining in the extension pipe 10 is transported to the fifth connecting pipe 14 through the third connecting pipe 11. By adjusting the valve 13 to half open state, so that half of the hot air in the third connecting pipe 11 enters the fifth connecting pipe 14, realizing heat recovery and reuse, and turning the positive pressure in the third connecting pipe 11 into a negative pressure, and the hot air in the fifth connecting pipe 14 comes from the heat generated by the combustion of the burner 15, and then passes through the refractory wall 1601, the buffer bin 1602, and the sedimentation bin 1603 in the combustion furnace 16 for processing, and then is transported to the drying furnace 1 through the fan 17. The ash in the fuel machine cannot enter the core charging tray, and the product will not contain wood ash, thereby continuously replenishing heat energy for the drying furnace 1.

[0032] The above embodiments only express the implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims

1. A wet powder processing powder reduction positive pressure drying suspension system, comprising a drying furnace (1), a finished product collector (2), a finished product bin (3), a burner (15), a combustion furnace (16) and a control box, characterized in that: A centrifugal fan (25) is installed on the top of the drying furnace (1), and the centrifugal fan (25) is connected to the top of one side of the finished product collector (2) through a first connecting pipe (8). The bottom of the finished product collector (2) is connected to the finished product bin (3) through a lift (4). The top of the finished product collector (2) is connected to an extension pipe (10) through a second connecting pipe (9). The top circumference of the extension pipe (10) is connected to a third connecting pipe (11) and a fourth connecting pipe (12). The fourth connecting pipe (12) is connected to the first dust collector (23) and the second dust collector (24) respectively, the third connecting pipe (11) is connected to the fifth connecting pipe (14), one end of the fifth connecting pipe (14) is connected to the combustion furnace (16), the other end of the fifth connecting pipe (14) is connected to the air inlet of the fan (17), the air outlet of the fan (17) is connected to the drying furnace (1) through the air inlet pipe (18), and the third connecting pipe (11) is installed with a valve (13).

2. The wet powder processing powder reduction positive pressure drying suspension system according to claim 1 is characterized by: The top of the combustion furnace (16) is connected to the burner (15) through a sixth pipeline, and the interior of the combustion furnace (16) is provided with a fire-resistant wall (1601), a buffer bin (1602), and a sedimentation bin (1603) in sequence from top to bottom.

3. The wet powder processing powder reduction positive pressure drying suspension system according to claim 1 is characterized by: A feed pipe (7) is installed on the peripheral side of the drying furnace (1), and the top feed inlet of the feed pipe (7) is connected to the raw material bin (5) through a raw material conveying mechanism (6).

4. The wet powder processing powder reduction positive pressure drying suspension system according to claim 3 is characterized by: An auger (73) is provided inside the elevator (4) and the feed pipe (7), one end of the auger (73) is connected to a gear in a reduction box (71), and a second motor (72) is installed on the reduction box (71).

5. The wet powder processing powder reduction positive pressure drying suspension system according to claim 1 is characterized by: A powder classifier (26) is installed at the top of the interior of the drying furnace (1), and a coarse powder discharge pipeline (22) is connected to the bottom side of the powder classifier (26).

6. The wet powder processing powder reduction positive pressure drying suspension system according to claim 1 is characterized by: A scatterer (19) is installed at the bottom of the drying furnace (1), and the scatterer (19) is connected to a pulley on the main shaft of the first motor (20) through a belt, and a large-particle garbage discharge pipe (21) is connected to the bottom of the scatterer (19).

7. The wet powder processing powder reduction positive pressure drying suspension system according to claim 1 is characterized by: The raw material conveying and transmission mechanism (6) is composed of a conveyor belt mounting frame, a conveyor belt and a conveyor belt motor.

8. The wet powder processing powder reduction positive pressure drying suspension system according to claim 1 is characterized by: The sedimentation bin (1603) in the combustion furnace (16) is connected to the fan (17) via a fifth connecting pipe (14).

9. The wet powder processing powder reduction positive pressure drying suspension system according to claim 1, characterized in that: The control box is electrically connected to the raw material conveying mechanism (6), the first motor (20), the centrifugal fan (25), the fan (17), the elevator (4) and the second motor (72) on the feed pipe (7).

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