CN2202286Y

CN2202286Y - Shaft kiln for baking bricks

Info

Publication number: CN2202286Y
Application number: CN94227265U
Authority: CN
Inventors: 戢家齐
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-03-07
Filing date: 1994-03-07
Publication date: 1995-06-28
Anticipated expiration: 2004-03-07

Abstract

The utility model relates to a belly-opening type shaft kiln for baking bricks. The belly-opening type shaft kiln is characterized in that a chimney, a tunnel kiln, an air exhaust pipe and an air exhaust hood are connected with a kiln body, and the kiln body is provided with a slotted window; the air exhaust pipe is provided with a control valve, and the opening degree of the control valve adjusts the air input quantity or the combustion state of fuel inside the kiln to reach optimal sintering temperature and ensure the stableness of production quality; the waste product rate is lowered below 5%, and the energy consumption is reduced by 20% The utility model solves the disadvantages that shaft kilns are not easy to manage and have great technical difficulty.

Description

Shaft kiln for baking bricks

The utility model relates to a kind of roasting kiln of construction material brick and tile.

At present, the brick firing kiln of employing can be divided into horizontal or vertical two big classes.Vertical furnace has simple in structure than horizontal kiln, with short production cycle, and energy consumption is low, the advantage that production cost is low, and Chinese patent CN2056498U is entitled as " a kind of vertical brickkiln of economizing on coal " and Chinese patent CN2066959U is entitled as " shunting energy saving annular kiln " existing report.Therefore, the desire producer that adopts vertical furnace to bake bricks is more and more in recent years.But vertical furnace production technology difficulty is big, product quality is wayward, mainly be short causing of firing time, necessarily require knack workman operational administrative, young workman and new worker are difficult to adapt to, and produce scrappage up to more than 20%, some producers are because of the percent defective height, benefit is low and be forced to stop production, and has had a strong impact on applying of vertical furnace, compels to wait to improve.

The purpose of this utility model is that a kind of opening type vertical kiln apparatus of baking bricks is provided at the deficiencies in the prior art, be characterized on the kiln body, offering the clearance type window, the installing control valve is controlled the air mass flow into stove on the exhaust column on kiln top, the combustion position of fuel metering, thereby reach best sintering technology, guarantee constant product quality, percent defective is reduced to below 5%, and energy consumption reduces by 20%.Vertical furnace not manageability and the big shortcoming of operating technology difficulty have been solved.

The opening type that the utility model provides is baked bricks vertical kiln apparatus as shown in Figure 1

Fig. 1 is the opening type vertical kiln apparatus schematic diagram of baking bricks

(1) chimney, (2) tunnel cave, (3) adobe dolly, (4) combustion chamber, (5) exhaust column, (6) control valve, (7) draught hood, (8) kiln body, (9) clearance type window, (10) grate, (11) blanking elevating mechanism, (12) finished product dolly.

Fig. 2 is that B-B cut-away view Fig. 3 is the A-A cut-away view

Opening type is baked bricks the extract system of vertical kiln apparatus by chimney (1), tunnel cave (2), exhaust column (5) is connected kiln body (8) with draught hood (7), tunnel cave (2) end attachment rail tilts 5 °-10 ° to the kiln body, adobe dolly (3) automatically or a little thrust slides into outlet, adopt machinery or manual method to pack adobe into to kiln body (8) from the kiln top, offer clearance type window (9) on the kiln body (8), the exhaust column (5) of draught hood (7) upper end is gone up installing control valve (6), control valve (6) breakdown degree is regulated intake or fuel combustion situation in the kiln, grate (10) is movable, can extract out and insert, kiln body lower end elevating mechanism (11) adopts machine driving or manual.

The opening type shaft furnace height of baking bricks is a 6-9 rice, and preheating section is a 2-4 rice, and the section of burning till is a 2-3 rice, and cooling section is a 2-3 rice, and the clearance type window is long to be 2-3 rice, and its position adapts with the section of burning till, and window is established and closed door, closes immediately when not observing.

Fully dry in tunnel cave in order to guarantee adobe, moisture is reduced to about 6%, therefore, sets up the waste heat deficiency that combustion chamber (4) replenishes waste gas when opening kiln or opening the kiln negligible amounts on the tunnel cave side.

The utility model is to realize like this, by chimney (1), exhaust tube (5), the effect of draught hood (7), make kiln top waste gas enter tunnel cave (2) with 100-200 ℃, carry that the dolly (3) of completely wet adobe is end to end slowly to be slided on the tunnel cave inner orbit, waste gas by reverse flow absorbs moisture content, make adobe dry gradually, adobe in kiln through running to outlet in 10～20 hours, water content is reduced to about 6%, and be preheating to 60～100 ℃, when waste gas residual heat is not enough, use combustion chamber (4) additional heat, guarantee brick bat drying, adopt machinery or manual method that adobe is after drying pushed up in the kiln body (8) of packing into from kiln.Adobe moves to preheating section downwards by kiln body (8) top, be warming up to 1000 ℃ gradually, enter the section of burning till, highest temperature zone reaches 1200～1300 ℃, finish and fire, adobe continues to come downwards to cooling section and is cooled to 50～100 ℃ gradually, elevating mechanism (11) rises, hold fragment of brick, extraction activity grate (10) treats that the elevating mechanism dropping distance reaches a collection of bed of material when high (0.48～0.6 meter), insert grate, hold adobe in the kiln, elevating mechanism continues to descend and puts in place, is discharged to finished product dolly (12) warehouse-in.

The utlity model has following advantage:

1. the opening type shaft furnace of baking bricks has the energy-conservation advantage of vertical structure brickkiln, and simple and reasonable for structure, construction investment is few.

2. can directly observe the situation of kiln fuel combustion, realize best-of-breed technology control by control valve, improve product quality greatly, percent defective is reduced to below 5%, and energy consumption reduces about 20%.

3. the production cycle shortens to 30～40 hours, reduces and uses site area about 30%.

4. overcome vertical furnace in the prior art not manageability, be difficult to grasp the shortcoming of operating technology, apply, remarkable economic efficiency and social benefit arranged.

Embodiment

The opening type that the utility model provides is baked bricks shaft furnace as shown in Figure 1, have simple in structure, easily manufactured, civil engineering team material laies such as common brick and schamotte brick, optional equipment can be bought in machinery plant's processing and manufacturing or market, and general engineering technology personnel or skilled worker can indicate normal running by by specification by figure construction and installation, brick burner per capita.

Claims

1, a kind of opening type vertical kiln apparatus of baking bricks, contain extract system, kiln body and blanking elevating mechanism, it is characterized in that this opening type is baked bricks offers clearance type window (9) on the kiln body (8) of vertical kiln apparatus, the exhaust column (5) of draught hood (7) upper end is gone up installing control valve (6), control valve (6) breakdown degree is regulated intake or fuel combustion situation in the kiln, grate (10) is movable, can extract out and insert, and kiln body lower end elevating mechanism (11) adopts machine driving or manual.

2, according to the described opening type of claim 1 vertical kiln apparatus of baking bricks, it is characterized in that the bake bricks kiln height degree of vertical kiln apparatus of this opening type is a 6-9 rice, preheating section is a 2-4 rice, the section of burning till is a 2-3 rice, cooling section is a 2-3 rice, and the clearance type window is long to be 2-3 rice, and its position adapts with the section of burning till, window is established and is closed door, closes immediately when not observing.