CN201876146U

CN201876146U - Kiln afterheat utilizing system

Info

Publication number: CN201876146U
Application number: CN2010206383029U
Authority: CN
Inventors: 刘凤春; 胡延林; 赵晓春; 王金华
Original assignee: ZHIJIANG JIUYUAN PACKAGE PRODUCT CO Ltd
Current assignee: ZHIJIANG JIUYUAN PACKAGE PRODUCT CO Ltd
Priority date: 2010-12-02
Filing date: 2010-12-02
Publication date: 2011-06-22
Anticipated expiration: 2020-12-02

Abstract

The utility model discloses a kiln afterheat utilizing system which consists of a remote heat-taking system, a mixing system, a delivering system and a dehumidifying system. One end of an air hose in the remote heat-taking system is communicated with a kiln afterheat extracting air hose, the other end of the air hose is communicated with a mixing chamber of the mixing system, and the mixing chamber is communicate with a boiler draught fan. A cold air gate is arranged on the air hose of the mixing chamber. An outlet pipeline of the boiler draught fan is communicated with a plurality of drying chambers through a delivering pipeline of the delivering system, each drying chamber is divided into a mould drying room close to a grouting area and a blank drying room at the outer side of the mould drying room, and the drying chambers are communicated with a dehumidifying pipeline of the dehumidifying system. With the adoption of the kiln afterheat utilizing system, heat energy in hot air generated by a kiln is recycled for drying blank bodies and moulds produced by the kiln, so that the afterheat is effectively utilized, the energy source is saved and the production yield of the kiln is improved.

Description

Using residual heat from kiln furnace utilizes system

Technical field

The utility model relates to a kind of bootstrap system, and especially a kind of using residual heat from kiln furnace utilizes system.

Background technology

In the roller kilns production process, the hot blast that is produced has a large amount of heat energy, and UTILIZATION OF VESIDUAL HEAT IN is insufficient, the waste heat layout of beam line is unreasonable, and it is wide to add that slip casting platform heating system distributes, and thermal losses is big, cause whole utilization rate of waste heat low, gypsum mould grouting per tour number of times few (per tour secondary).Under existing thermal source situation, produce and be difficult to reach ideal effect.

Summary of the invention

Technical problem to be solved in the utility model provides a kind of using residual heat from kiln furnace and utilizes system, can utilize the be used for kiln base substrate of producing, the oven dry of mould of heat energy in the hot blast that kiln produces again, make waste heat obtain effective utilization, saved the energy, improved kiln production output.

For solving the problems of the technologies described above, the technical scheme that the utility model adopted is: a kind of using residual heat from kiln furnace utilizes system, it is by long-range heat-obtaining system, hybrid system, induction system and dehumidification system are formed, airduct one end in the long-range heat-obtaining system extracts airduct with using residual heat from kiln furnace and is communicated with, the airduct other end is communicated with the mixing chamber of hybrid system, mixing chamber is communicated with boiler induced-draft fan, the airduct of mixing chamber is provided with the cold wind gate, the outlet conduit of boiler induced-draft fan is communicated with a plurality of hothouses by the conveyance conduit of induction system, hothouse is divided into the base drying room near the mould drying room in slip casting zone and the mould drying room outside, and hothouse is communicated with the hydrofuge pipeline of dehumidification system.

The flow of boiler induced-draft fan is 6400NM ³/ h, power are 45KW.

The hot-blast outlet of hothouse is controllable hot-blast outlet.

The base drying room that the base drying room is made for the heat-preservation cotton material.

The using residual heat from kiln furnace that the utility model provides utilizes system, and beneficial effect is as follows:

1, utilize the airduct in the long-range heat-obtaining system that the hot blast in the kiln is drawn in the mixing chamber, with the normal working temperature that reaches blower fan after cold air mixes, be transported in the hothouse by induction system again, be used for the base substrate of kiln production, the oven dry of mould, can utilize the heat energy in the hot blast that kiln produces to be used for kiln production again, the saturated with moisture in the hothouse is discharged by dehumidification system, makes waste heat obtain effective utilization, save the energy, improved kiln production output.

2, adopt long-range heat-obtaining system,, strengthen and extract hot blast rate out keeping allowing under the stable prerequisite of furnace pressure curve, the method for the segmentation heat-obtaining of the UTILIZATION OF VESIDUAL HEAT IN that breaks traditions, make product and kiln furnitures by cooled kiln discharge temperature than environment temperature high 5-10 ⁰C reduced the calorific intensity of product and kiln furnitures, overcome product because of cool off unreasonable cause burn till defective, the access times of kiln furnitures have increased 50-80 time, reach energy-saving and cost-reducing effect simultaneously.

3, the airduct of mixing chamber is provided with the cold wind gate, make hot blast before entering blower fan, mix cold (environment temperature) air, hot blast temperature is reduced to about 140 ℃, the safe operation that had both guaranteed blower fan has increased the hot blast total amount, the most important thing is that the reduction of hot blast temperature has reduced the thermograde of hot blast and surrounding medium, has reduced heat loss effectively.

4, the hot-blast outlet of hothouse is designed to controllable hot-blast outlet, hot blast is with different angles and to be higher than former twice wind speed ejection, formed more uniform temperature in the mutual stirring hothouse, hot blast is at a high speed in time taken the moisture of product surface out of, has returned rate of drying fast.

5, the base drying room adopts the heat-preservation cotton material to make, and has replaced original asbestos shingle, has overcome its airtight, as to turn one's coat shortcoming, has improved the utilization rate of waste heat of base drying room.

6, transform after, the finished product daily output is brought up to 6.5 ten thousand from 40,000, a day air consumption is reduced to 4500 cubes from 5000 cubes, the mean consumption energy of every finished product is worth and is reduced to 0.017 yuan from 0.3075 yuan, reduced by 45%, effectively utilized using residual heat from kiln furnace, greatly reduced energy consumption.

7, whole system need not adopt and send air-heater, and the noise in the workshop is descended significantly, and the workshop working environment is well improved, and helps workers health.

8, dehumidification system is former high temperature, and low air quantity vexed dried becomes middle temperature, and middle air quantity dehydration mould drying, dry body are avoided damaging plaster mold interior molecules structure, thereby improved mould, base substrate dries quantity.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples:

Fig. 1 is a structural representation of the present utility model.

The specific embodiment

As shown in Figure 1, a kind of using residual heat from kiln furnace utilizes system, it is by long-range heat-obtaining system 1, hybrid system 2, induction system 3 and dehumidification system 4 are formed, airduct 5 one ends in the long-range heat-obtaining system 1 extract airduct 6 with using residual heat from kiln furnace and are communicated with, airduct 5 other ends are communicated with the mixing chamber of hybrid system 2, mixing chamber is communicated with boiler induced-draft fan 7, the airduct of mixing chamber is provided with the cold wind gate, the outlet conduit of boiler induced-draft fan 7 is communicated with a plurality of hothouses by the conveyance conduit of induction system 3, hothouse is divided near the mould drying room 9 in slip casting zone 8 and the base drying room 10 in mould drying room 9 outsides, and hothouse is communicated with the hydrofuge pipeline 11 of dehumidification system 4.

The flow of boiler induced-draft fan 7 is 6400NM ³/ h, power are 45KW.

The hot-blast outlet of hothouse is controllable hot-blast outlet.

The base drying room that base drying room 10 is made for the heat-preservation cotton material.

With the pot air-introduced machine is that power set extract the waste heat in the kiln, and the slow district of closing of cooling connects airducts 5 with 400 airducts 12 in kiln, and the kiln tail is got with funnel that the air port is connected with ￠ 400 airducts 12 and served as to control the air quantity important document with 400 air lock systems respectively.

Open the cold wind gate supply air quantity on the airduct, and mix with hot blast, formation temperature is less than or equal to 140 in mixing chamber ⁰The high-pressure hot wind of C.

Open the air lock system of air supply duct 13, hot blast is delivered to main air supply duct 14, form three-way pipeline at 32 meters apart from main

air supply duct

14,2 changes that connect 1200 air lock systems 15 respectively are connected to 1000 airducts 16 to hothouse top and enter in mould drying room 9 and the base drying room 10.

Airducts with 320 in the mould drying room 9 are trunk line, apart from 2 meters of ground levels, respectively with 100*80 side's airduct under the triangular form to ground, open with angle, air outlet, to form downward blast.

In the base drying room 10 400 be main air duct directly to ground level, on the webmaster with 45 ⁰Angle is opened 50 air outlets, forms upwards blast.

Mould drying room 9 and base drying room 10 tops form hydrofuge pipeline 11 with 200 airducts respectively, utilize air exhauster 17 to extract the interior moisture of drying room and carry out the specific aim hydrofuge, hydrofuge was the interval with 2 hours, was that standard forms automatic hydrofuge with 15 minutes, to guarantee dry interior stream humidity, satisfy dry.

Claims

1. a using residual heat from kiln furnace utilizes system, it is by long-range heat-obtaining system (1), hybrid system (2), induction system (3) and dehumidification system (4) are formed, it is characterized in that: airduct (5) one ends in the long-range heat-obtaining system (1) extract airduct (6) with using residual heat from kiln furnace and are communicated with, airduct (5) other end is communicated with the mixing chamber of hybrid system (2), mixing chamber is communicated with boiler induced-draft fan (7), the airduct of mixing chamber is provided with the cold wind gate, the outlet conduit of boiler induced-draft fan (7) is communicated with a plurality of hothouses by the conveyance conduit of induction system (3), hothouse is divided into the base drying room (10) near the mould drying room (9) in slip casting zone (8) and mould drying room (9) outside, and hothouse is communicated with the hydrofuge pipeline (11) of dehumidification system (4).

2. using residual heat from kiln furnace according to claim 1 utilizes system, it is characterized in that: the flow of boiler induced-draft fan (7) is 6400NM ³/ h, power are 45KW.

3. using residual heat from kiln furnace according to claim 1 utilizes system, it is characterized in that: the hot-blast outlet of hothouse is controllable hot-blast outlet.

4. using residual heat from kiln furnace according to claim 1 utilizes system, it is characterized in that: the base drying room that base drying room (10) is made for the heat-preservation cotton material.