CN2804087Y

CN2804087Y - Enviroment protection, energy saving calcium lime digestion appts

Info

Publication number: CN2804087Y
Application number: CN 200520144748
Authority: CN
Inventors: 林记元; 张建光
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-26
Filing date: 2005-12-26
Publication date: 2006-08-09
Anticipated expiration: 2015-12-26

Abstract

The utility model relates to an environment protecting and energy saving quicklime digester, which comprises a digester, wherein a spiral stirrer is arranged in a casing of the digester and is connected with a transmitting device, and the tail part of the digester is provided with dust removing equipment. The dust removing equipment is composed of a water tank and a negative pressure generating device, wherein the negative pressure generating device is arranged at the top of the water tank, and a dust exhausting opening at the top at the back end of the casing of the digester is communicated with an inlet at the top of the water tank through a connecting tube. The inlet position of the water tank is provided with a sieve tube, the negative pressure generating device is a fan, and the fan is connected with a gas exhausting tube at the top of the water tank. The utility model can thoroughly solve the problem that the steam which is generated when the quicklime is digested and contains powder dust seriously pollutes environment.

Description

The environmental protection and energy saving burnt lime digester

Technical field

The utility model relates to the device of assimilation of quicklime using in the metallurgy industry sintered material system.

Background technology

All be provided with quicklime slaking device---burnt lime digester at the steel works sintering feed proportioning system, at present general simple helix agitator or the propulsive pattern of double spiral agitator of adopting adds water and stirs and be dispensed into material-transporting system after unslaked lime digested.The subject matter that this digestive organ exists is: add the dusty gas that produces a large amount of comparatively high tempss in the water digestive process at unslaked lime.Digestion back discharge process also produces and contains dusty gas in a large number.The production plant atmospheric environment is abominable, and Air quality surpasses hundreds of times of national environmental protection regulation, and it is healthy to have a strong impact on the direct labor.The CaO that is dissipated in the atmosphere reaches annual tens tons more than, at pollutant atmosphere simultaneously, also is a kind of waste of resource.

Summary of the invention

At the shortcoming that prior art exists, the purpose of this utility model provides a kind of environmental protection and energy saving burnt lime digester, the problem that contains dust steam serious environment pollution that produces when thoroughly solving quicklime slaking.

For achieving the above object, the utility model is by the following technical solutions:

A kind of environmental protection and energy saving burnt lime digester, comprise digestive organ, in the digestive organ housing spiral stirrer is housed, this spiral stirrer is connected with transmission mechanism, it is characterized in that: the digestive organ afterbody is provided with dust removal installation, and this dust removal installation is made of water tank and negative pressure generation device, and the negative pressure generation device is installed in the top of water tank, the dust-exhausting port at the top, rear end of described digestive organ housing is communicated with the inlet of water tank upper by adapting pipe, and screen casing is equipped with at this tank entry place.

Described negative pressure generation device is a blower fan, and this blower fan is connected with the steam discharge pipe of tank top.

Described screen casing is made up of a plurality of vertical tubes, the top of each vertical tube with take over a business to be connected, have horizontal through hole on the bottom tube wall of each vertical tube.

The spilling water groove is equipped with in the below of described vertical tube, and the bottom of described vertical tube is stretched in the spilling water groove, and the bottom of spilling water groove is communicated with filling pipe, and filling pipe is communicated with water-supply pipe, and float switch is housed on the filling pipe.

Water shoot is equipped with in the bottom of described water tank, and water shoot is connected with return water pipe through water pump, and return water pipe is communicated with the shower nozzle that is installed in digestive organ housing inner top.

Described transmission mechanism is made up of electric motor, step-down gear, shaft coupling, wheel casing, and the main shaft of electric motor is connected with step-down gear, and step-down gear is connected with the input shaft of wheel casing by shaft coupling, and the output shaft of wheel casing is connected with described spiral stirrer.

The blower fan that described tank top is installed makes the inner negative pressure that produces of water tank, make the mandatory water tank that enters of steam of the band dust that generates in the quicklime slaking process, sedimentation and filtration in water tank, pure water vapor after the filtration is discharged by blower fan, water in the water tank recycles by water pump, return through water shoot, return water pipe and to enter in the digestive organ housing,, be used for quicklime slaking once more by the shower nozzle ejection.

The utility model has following actively useful effect:

This digestive organ will stir to carry and organically combine with dedusting, adopt single blade stir shaft, stir more even, digest more abundant, utilize the blower fan steam discharge, pressure contains dust steam and enters the spilling water groove by screen casing, collects sewage with water tank, by the sewage after the water pump recycle dedusting, water resources avoids waste, postdigestive lime mass transport is to discharge port, and natural and tripping discharge enters feed proportioning system by conveying belt, whole digestive process is simple and reliable, both save the energy and resource, solved the problem that contains the dust steam polluting environment of quicklime slaking generation for many years again, improved Working environment.

Description of drawings

Fig. 1 is the structural representation of the utility model one embodiment.

Fig. 2 is the enlarged view of the dust removal installation among Fig. 1.

Fig. 3 is the structural representation of screen casing among Fig. 2.

Fig. 4 is the upward view of Fig. 3.

Fig. 5 is the A portion partial enlarged drawing of Fig. 3.

Embodiment

Accompanying drawing number

1. water pump 2. water tanks 3. water-supply pipes 4. vertical tubes

5. blower fan 6. shower nozzles 7. spiral stirrers

8. discharge valve 9. wheel casinges 10. shaft couplings 11. step-down gears

12. electric motor 13. discharge ports 14. float switches 15. ball floats

16. spilling water groove 17. filling pipes 19. water shoots

20. hopper 21. return water pipes 22. dust-exhausting ports 23. adapting pipes

25. steam discharge pipes, 26. conveyors, 27. conveying belt 24. enter the mouth

28. digestive organ housing 29. frames 30. are taken over a business 31. through holes

Please refer to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, the utility model is a kind of environmental protection and energy saving burnt lime digester, comprise digestive organ, spiral stirrer 7 is housed in the digestive organ housing 28, this spiral stirrer 7 is connected with transmission mechanism, transmission mechanism is made up of electric motor 12, step-down gear 11, shaft coupling 10, wheel casing 9, electric motor 12 is installed on the frame 29, the main shaft of electric motor 12 is connected with step-down gear 11, step-down gear 11 is connected with the input shaft of wheel casing 9 by shaft coupling 10, and the output shaft of wheel casing 9 is connected with spiral stirrer 7 in the digestive organ housing 28.

The digestive organ afterbody is provided with dust removal installation, and this dust removal installation is made of water tank 2 and negative pressure generation device, and the negative pressure generation device is made of blower fan 5, and this blower fan 5 is installed in the top of water tank 2, and blower fan 5 is connected with the steam discharge pipe 25 at water tank 2 tops.The dust-exhausting port 22 at the top, rear end of digestive organ housing 28 is communicated with by the inlet 24 of adapting pipe 23 with water tank 2 tops, and screen casing is equipped with at this tank entry place.Screen casing is made up of a plurality of vertical tubes 4, and the top of each vertical tube 4 links into an integrated entity as shown in Figure 3, Figure 4 by taking over a business 30, has horizontal through hole 31 as shown in Figure 5 on each vertical tube 4 bottom tube wall, so that dust contacts mixing more fully with water.

Please refer to Fig. 1, Fig. 2, spilling water groove 16 is equipped with in the below of vertical tube 4, the bottom of vertical tube 4 is stretched in the spilling water groove 16, the bottom of spilling water groove 16 is communicated with filling pipe 17, filling pipe 17 is communicated with water-supply pipe 3, and float switch 14 is housed on the filling pipe 17, and water shoot 19 is equipped with in the bottom of water tank 2, water shoot 19 is connected with return water pipe 21 through water pump 1, and return water pipe 21 is communicated with the shower nozzle 6 that is installed in digestive organ housing 28 tops.

Unslaked lime adds the band dust steam that generates in the water digestive process, blower fan 5 makes the water tank 2 inner negative pressure that produce, the steam of feasible band dust is mandatory to enter water tank 2 by screen casing, and dust steam is sedimentation and filtration in water tank 2, and the pure water steam after the filtration is discharged by steam discharge pipe 25.Water pump 1 can make the water in the water tank 2 return through water shoot 19, return water pipe 21 and enter in the digestive organ housing 28, by shower nozzle 6 ejections, is used for quicklime slaking once more, realizes recycling of water.

Digestive organ housing 28 front top are connected with hopper 20 by discharge valve 8, and discharge port 13 is arranged at the bottom, rear end of digestive organ housing 28, and conveying belt 27 is equipped with in the below of discharge port 13.Conveying belt 27 drives running by conveyor 26.

Principle of work of the present utility model is: electric motor 12 drive speed reducer 11, make spiral stirrer 7 rotations by shaft coupling 10 and wheel casing 9, and spiral stirrer 7 can have only one, is the simple helix formula.Also can be double-screw type for two, two stir shafts of double spiral agitator 7 are driven by wheel casing 9 and do synchronous retrograde rotation.Wherein one turns clockwise, and another is rotated counterclockwise mutually.After discharge valve 8 is opened, unslaked lime enters digestive organ housing 28 from hopper 20, unslaked lime is advanced by spiral stirrer 7 in digestive organ housing 28, in the time of discharge port 13 motions, dozens of shower nozzle 6 is sprayed water downwards, produce the steam that contains dust in a large number in the assimilation of quicklime using process, these steam that contain dust are sucked in the water tank 2 by blower fan 5, and the preceding elder generation of steam that contains dust enters spilling water groove 16 by screen casing.The steam major part condenses into water, after being integrated with water, dust overflows into water tank 2, sedimentation and filtration in water tank 2, water in the water tank 2 is extracted out in shower nozzle 6 sprays into digestive organ housing 28 through water pump 1 again, make sewage obtain recycle, postdigestive lime mass transport is to discharge port 13, and natural and tripping discharge enters feed proportioning system by conveying belt 27.

Ball float 15 when water tank 2 lacks of water, can be opened filling pipe 17 moisturizings according to the open and close of the level controling floating ball switch 14 in the water tank 2 automatically, guarantees the water level in the water tank 2.Shower nozzle 6 adds water for the unslaked limes in the digestive organ housing 28, also plays flushing spiral stirrer blade simultaneously, and the good unslaked lime of digestion is by the natural and tripping discharge of discharge port 13, thereby has reached the purpose of environmental protection assimilation of quicklime using.

Claims

1. environmental protection and energy saving burnt lime digester, comprise digestive organ, in the digestive organ housing spiral stirrer is housed, this spiral stirrer is connected with transmission mechanism, it is characterized in that: the digestive organ afterbody is provided with dust removal installation, and this dust removal installation is made of water tank and negative pressure generation device, and the negative pressure generation device is installed in the top of water tank, the dust-exhausting port at the top, rear end of described digestive organ housing is communicated with the inlet of water tank upper by adapting pipe, and screen casing is equipped with at this tank entry place.

2. environmental protection and energy saving burnt lime digester as claimed in claim 1 is characterized in that: described negative pressure generation device is a blower fan, and this blower fan is connected with the steam discharge pipe of tank top.

3. environmental protection and energy saving burnt lime digester as claimed in claim 1 is characterized in that: described screen casing is made up of a plurality of vertical tubes, the top of each vertical tube with take over a business to be connected, have horizontal through hole on the bottom tube wall of each vertical tube.

4. environmental protection and energy saving burnt lime digester as claimed in claim 3, it is characterized in that: the spilling water groove is equipped with in the below of described vertical tube, and the bottom of described vertical tube is stretched in the spilling water groove, and the bottom of spilling water groove is communicated with filling pipe, filling pipe is communicated with water-supply pipe, and float switch is housed on the filling pipe.

5. environmental protection and energy saving burnt lime digester as claimed in claim 1 is characterized in that: water shoot is equipped with in the bottom of described water tank, and water shoot is connected with return water pipe through water pump, and return water pipe is communicated with the shower nozzle that is installed in digestive organ housing inner top.

6. environmental protection and energy saving burnt lime digester as claimed in claim 1, it is characterized in that: described transmission mechanism is made up of electric motor, step-down gear, shaft coupling, wheel casing, the main shaft of electric motor is connected with step-down gear, step-down gear is connected with the input shaft of wheel casing by shaft coupling, and the output shaft of wheel casing is connected with described spiral stirrer.