CN1931767A

CN1931767A - Inclined-trough cement coller

Info

Publication number: CN1931767A
Application number: CN 200610124749
Authority: CN
Inventors: 郑用琦
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-10-12
Filing date: 2006-10-12
Publication date: 2007-03-21
Anticipated expiration: 2026-10-12
Also published as: CN100491280C

Abstract

The inclined trough cement cooler for improved cement conveying inclined trough consists of assembled head, tail and standard sections, each of which consists of heat exchangers or heat pipes, cold airflow chamber, ventilating layer and air box. The present invention adopts heat pipe technology and low temperature gas at -5 deg.c to 15 deg.c generated based on the technology of the present inventor as the cooling medium, and cement is cooled through close contact with heat exchangers or heat pipes with low temperature air flow and through heat exchange with the normal temperature low pressure airflow in the air box. The present invention has simple structure, high cooling efficiency, no transmission part, high performance/cost ratio and other advantages.

Description

Inclined-trough cement coller

Technical field

The present invention relates to a kind of device that applies to building material industry cooling cement (reaching industry cooling pulverulent materials such as chemical industry food), specifically is a kind of inclined-trough cement coller.

Background technology

The high-speed fundamental construction that brings of current China Economic development high-speed, the quality product of feedwater bricklayer industry is had higher requirement, and the quality of cement has become the prerequisite that improves job schedule and construction quality.Along with improving constantly of construction work speed and quality, increasing construction work has proposed strict requirement to the temperature of cement.Require the temperature of cement should be lower than 60 ℃ as reservoir dam, port and pier, road and bridge, oceanographic engineering, tunnel and important engineering etc., have in addition reach 50 ℃.The restriction of cement temperature has been become the important indicator of current cement quality.Being reduced in of cement temperature not only seems particularly important in the production process, also cause numerous cement production enterprises great attentions.

But, the heat that cement produces in the grinding production process, major part is absorbed by cement in mill, the cement temperature that causes mill is generally more than 100 ℃, and 120 ℃ are comparatively general, have in addition reach 160 ℃, when the grinding machine state of arts is relatively poor, goes out to grind the cement temperature and reach 180 ℃ sometimes.After the cement temperature superelevation, not only can cause gypsum dehydration, influence quality product, can cause also that simultaneously grinding machine crosses grinding, stifled mill, sticks with paste mill, accidents such as bearing bush temperature height take place, and finally influence terminal user's concrete construction quality.

The cement temperature controlling has been become one of important indicator of cement quality.Reduce cement to go into warehouse temperature and satisfy engineering be pendulum at one of important process of current cement works technician to the temperature requirement of cement, but the finished cement temperature is being the objective phenomenon of cement production process more than 100 ℃ generally, the process procedure and the equipment that cement are not cooled in the cement production process process before this, this causes certain degree of difficulty just for the cooling of cement finished product.Produce a lot of different modes thus to cement cooling cooling, be broadly divided into water-cooled and air-cooled direct or indirect cooling, such as the type of cooling commonly used that strengthens ventilation, water spray, the outer trickle of mill in the mill, but DeGrain, and have a lot of drawbacks and accident potential.At present many scientific research institutions are doing a large amount of research and test to this, it is the VCC vertical barrel cement cooler of 02235820.X that a kind of patent No. is arranged, because its water consumption is excessive, more than the 100T/h, corrosion and wearing and tearing to equipment are big, complex structure, volume is big, cost performance is low and be difficult to be accepted by vast cement production enterprise.

Summary of the invention

A kind of inclined-trough cement coller provided by the invention, wherein use my number of patent application and be 2006201175199 utility model patent technology and generate-5 to 15 ℃ cryogenic gas as heat-eliminating medium, and the exploitation of opposite heat tube technology application, make cement when of the present invention, can carry out simultaneously indirectly and direct two kinds of heat exchanging process.

The technical scheme of technical solution problem of the present invention is: a kind of inclined-trough cement coller structurally passes through to improve with the conveying skewed slot at the cement of former industry standard, that is: be made of head, periproct and several (about 10) standard knots, each joint mainly is made up of several heat exchanger fins or heat pipe, cold air stream chamber, air-permeable layer, gas tank four parts; Wherein the cold air stream chamber is positioned at the top and the both sides of heat exchanger fin or heat pipe, and several heat exchanger fins or heat pipe are uniform to be weldingly fixed on the cold air stream chamber interior walls, and is positioned at the space on air-permeable layer top, and the bottom of air-permeable layer is a gas tank.

Above-mentioned inclined-trough cement coller, wherein, by head, periproct except the cement that possesses former industry standard with carry skewed slot charging and the discharging function, also the same with standard knot simultaneously have identical structure and a refrigerating function.Gradient is greater than the 5-8% of industry standard cement with the conveying skewed slot, between 12-15%.

Above-mentioned inclined-trough cement coller, wherein, heat exchanger fin or heat pipe adopt the thick carbon constructional steel plate of 3-4mm, or the wear resistant alloy stainless steel plate is made, number row's heat exchanger fin or heat pipe and cold air stream chamber interior walls are fixing by welding, and the clear spacing between heat exchanger fin or the heat pipe is more than the 20mm.Vertical distance is 15-20mm under air-permeable layer surface and heat exchanger fin or the heat pipe.The heat exchanger fin of adjacent standard knot or heat pipe line space are staggered.The material of cold air stream chamber interior walls is the wear resistant alloy steel plate and constitutes the cold air stream chamber with body skin welding.

Above-mentioned inclined-trough cement coller, wherein, cold air stream enters the mouth at each low side above the standard knot, and high-end at each standard knot of cold air stream outlet, makes it form indirect refrigerating function to cement; The cold air stream outlet links to each other with gas tank cold air stream inlet by the cold air stream conduit, is provided with flowrate control valve between cold air stream conduit and gas tank cold air stream inlet, to form the direct refrigerating function to cement.Each is provided with vision slit above the standard knot, outside surface and conduit all are wrapped to form thermal insulation layer with the heat-insulation and heat-preservation material, and the low side both sides of cold air stream chamber respectively are provided with a water of condensation water discharge valve.

The present invention has adopted " cement air conveyer flume " building material industry standard for the basis, by the improvement to its 26S Proteasome Structure and Function aspect, makes it not only keep cement air conveyer flume original function, has also increased the refrigerating function to cement simultaneously.On operation characteristic, can be divided into cold air stream motor system and cement material delivery system two portions.

The cold air stream motor system is made up of cold air stream inlet, cold air stream chamber, cold air stream outlet, cold air stream conduit, flowrate control valve and air-permeable layer bottom.The cement material delivery system is identical with the conveying principle of air conveyer flume with former cement.The process that cement material is cooled is: the normal temperature low-pressure air current that enters gas tank makes the cement that is positioned at above the air-permeable layer do the fluidization campaign from high-end to lower during by air-permeable layer.Cement closely contacts with the heat exchanger fin or the heat pipe that continuously low energy are conducted to low-temperature condition by the cold air stream chamber interior walls in movement continuously, makes it constantly carry out heat exchange in the motion, and this is the process that cement is indirectly cooled; Simultaneously after the cold air stream of cold air stream chamber conducts low energy to heat exchanger fin or heat pipe, the air communication that the temperature rising is about 5 ℃ is crossed the cold air stream conduit and is sent to gas tank, converge the back with the normal temperature low-pressure air current of gas tank and penetrate in the cement by air-permeable layer cement is directly cooled off, promptly finished the direct refrigerative process of cement.

The present invention compares to increase approximately with the gradient of air conveyer flume with former cement and is twice, and is in order to overcome friction resistance between cement and the heat exchanger fin is the fluidization travelling speed to cement influence.The friction resistance that heat exchanger fin that carbon constructional steel plate or wear resistant alloy stainless steel plate are made or heat pipe can be reduced to cement, the durability of raising heat exchanger fin or heat pipe.

To adopt the motion of cold air stream and the direction of motion of cement material among the present invention be inverse motion, is to meet the mechanism that the material heat exchange reaches top efficiency.

The beneficial effect of technical solution of the present invention is simple in structure, and cooling efficiency height, speed are fast, in light weight, and no drive disk assembly and cost performance advantages of higher not only can be cooled off cement, can also the pulverulent material of other industry be cooled off.

Description of drawings

The present invention is further described below in conjunction with accompanying drawing and example:

Fig. 1 is the Facad structure figure of standard knot of the present invention.

Fig. 2 is Fig. 1 right side A-A part sectioned view.

Fig. 3 is head of the present invention, tail and standard knot assembling synoptic diagram.

Mark among the figure: 1, cold air stream inlet, 2, the cold air stream outlet, 3, the cold air stream conduit, 4, gas tank cold air stream inlet, 5, heat exchanger fin or heat pipe, 6, the cold air stream chamber, 7, air-permeable layer, 8, gas tank, 9, the water of condensation water discharge valve, 10, cement inlet, 11, cement exit, 12, vision slit, 13, gas tank wind inlet, 14, insulating, 15, flowrate control valve, 16, cephalomere, 17, periproct, 18, standard knot.

Embodiment

As Fig. 1, shown in 2, cephalomere 16 of the present invention, periproct 17 and standard knot 18 embodiment after assembling is-5 to 15 ℃ a cold air stream, cold air stream inlet 1 by every joint low side enters cold air stream chamber 6, low energy is passed to inwall and each heat exchanger fin or the heat pipe 5 of cold air stream chamber 6, carry out heat exchange with the cement of making inverse motion above the air-permeable layer 7 this moment, rise about 5 ℃ cold air stream of temperature moves to high-end cold air stream outlet 2 simultaneously after the heat exchange, and arrive gas tank cold air streams inlet 4 by flowrate control valve 15 and cold air stream conduit 3 and enter gas tank 8, converge back one And by air-permeable layer 7 at this and the gas tank wind inlet 13 normal temperature low pressure wind that enter, be penetrated in the cement of motion cement is directly cooled off.The position of cold air stream inlet 1 is arranged in the low side 100mm as much as possible, and the position of high-end cold air stream outlet 2 also should be located at high end flanges 100mm with interior place, and the interior spacing of cold air stream chamber 6 can be 20-50mm.

Be provided with vision slit 12 above cephalomere 16, periproct 17 and the standard knot 18 so that the state of observing the cement motion and being cooled; Both sides respectively are provided with a water of condensation water discharge valve 9, so that can discharge water of condensation at any time; Be equipped with the insulating 14 that lagging material is made with each pipe connecting all around,, keep higher cooling efficiency as much as possible so that cold air stream can be used for the cooling to cement fully.Flowrate control valve 15 can enter the flow of the cold air stream of gas tank 8 according to the temperature and pressure status adjustment of cold air stream chamber 6, is in all the time among the lower state with the temperature of keeping cold air stream chamber 6.Heat exchanger fin or heat pipe 5 adopt the thick carbon constructional steel plate of 3-4mm, or the making of wear resistant alloy stainless steel plate, and number row's heat exchanger fin or heat pipe 5 are fixing by welding with cold air stream chamber 6 inwalls, and the clear spacing between heat exchanger fin or the heat pipe 5 is more than the 20mm.Air-permeable layer 7 surfaces are 15-20mm with heat exchanger fin or 5 times vertical distances of heat pipe.The material of cold air stream chamber 6 inwalls is the wear resistant alloy steel plate and constitutes cold air stream chamber 6 with body skin welding.

Simultaneously referring to Fig. 3, from the beginning the mud of economizing on water inlet 10 cement that enter, on every joint air-permeable layer 7 from high-end when low side is done the fluidization campaign, with the heat exchange that every internode fully replaces apart from the heat exchanger fin that staggers or heat pipe 5, cement enters the finished cement storehouse through the cement exit 11 that the cooling of several (about 10) standard knots arrives periproct later on.The heat exchanger fin of adjacent standard knot 18 or heat pipe 5 line spaces are staggered during assembling, and the gradient after the assembling with carrying skewed slot, is 12-15% greater than cement, can overcome the friction resistance between heat exchanger fin and the cement, keep the movement velocity of fluidization of material.

Claims

1, a kind of inclined-trough cement coller, the cement that it is characterized in that former industry standard is with passing through improvement on the structure of carrying skewed slot, by cephalomere (16), periproct (170 and several (about 10) standard knots (18) assemble, improve the every joint in back and mainly form by several heat exchanger fins or heat pipe (5), cold air stream chamber (6), air-permeable layer (7) and gas tank (8) four parts; Wherein, cold air stream chamber (6) are positioned at the top and the both sides of heat exchanger fin or heat pipe (5), and several heat exchanger fins or heat pipe (5) be at the inwall of cold air stream chamber (6), and are positioned at the space on air-permeable layer (7) top, and the bottom of air-permeable layer (7) is gas tank (8).

2, inclined-trough cement coller according to claim 1, it is characterized in that cephalomere (16), periproct (17) are except that the charging and discharging structure of the cement that possesses former industry standard with the conveying skewed slot, also have simultaneously and the same structure of standard knot (18), the motion of cold air stream and the direction of motion of cement material are inverse motion, gradient after each joint assembling with the gradient of carrying skewed slot 5-8%, is 12-15% greater than industry standard cement.

3, inclined-trough cement coller according to claim 1 and 2, it is characterized in that described heat exchanger fin or heat pipe (5) adopt the thick carbon constructional steel plate of 3-4mm, or the wear resistant alloy stainless steel plate is made, number row's heat exchanger fin or heat pipe (5) are fixing by welding with cold air stream chamber (6) inwall, clear spacing between heat exchanger fin or the heat pipe (5) is more than the 20mm, air-permeable layer (7) surface and heat exchanger fin or heat pipe (5) vertical distance down are 15-20mm, and the heat exchanger fin of adjacent standard knot or heat pipe (5) line space is staggered.

4, inclined-trough cement coller according to claim 1 and 2, it is characterized in that described cold air stream inlet (1) is at each low side above the standard knot, and cold air stream outlet (2) high-end at each standard knot makes it form spacing refrigerating function to cement; Cold air stream outlet (2) links to each other with gas tank cold air stream inlet (4) by cold air stream conduit (3), is provided with flowrate control valve (15) between cold air stream conduit (3) and gas tank cold air stream inlet (4), to form the direct refrigerating function to cement.

5, inclined-trough cement coller according to claim 3 is characterized in that the material of described cold air stream chamber (6) inwall also is the wear resistant alloy stainless steel plate, and constitutes cold air stream chamber (6) with the body skin welding.

6, inclined-trough cement coller according to claim 4, it is characterized in that described each be provided with vision slit (12) above the standard knot, outside surface and conduit all are wrapped to form insulating (14) with the heat-insulation and heat-preservation material, and the low side both sides of cold air stream chamber (6) respectively are provided with a water of condensation water discharge valve (9).