CN2384184Y

CN2384184Y - Horizontal double combustion charmber coal-fired hot-air stove

Info

Publication number: CN2384184Y
Application number: CN 99224234
Authority: CN
Inventors: 李振录
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-06-24
Filing date: 1999-06-24
Publication date: 2000-06-21
Anticipated expiration: 2009-06-24

Abstract

The utility model relates to a horizontal double-combustion chamber coal-fired hot-air stove. Cool air and preheating air channel used for reducing combustion temperature are arranged in the wall of a combustion chamber which can be used as a heating surface for preheating the cool air. The utility model is characterized in that a left combustion chamber, a right combustion chamber, a left fire grate, and a right fire grate are arranged in a stove body; a high temperature resistant protective layer is arranged at the high temperature end of a rear heat exchanger. Due to the adoption of the two combustion chambers, the two fire grates, and the protective layer of the heat exchanger, and hence, the utility model can effectively overcome the defect that the combustion chamber, a pipe plate at the high temperature end of the heat exchanger, and a heat exchange pipe are easy to damage in the working process of the hot-air stove.

Description

Horizontal double combustion chamber coal-fired hot-blast stove

The utility model relates to generally the fluid heater of heat-generating device technical field, particularly a kind of horizontal double combustion chamber coal-fired hot-blast stove that is used for dry industry.

In the dry industry of heating, needed drying medium is exactly clean high-temperature hot air, the equipment that produces clean hot air is hot-blast stove, at present employed horizontal coal-fired stove is a single combustion chamber, single fire grate structure, therefore at hot-blast stove to big capacity, rated heating capacity surpasses 4, during 2MW, the Combustion of Hot Air Furnace chamber is made and is compared because of difficulty the manufacturing process complexity, volume is big, the cost height is subjected to the restriction of material property, and the combustion chamber is scaling loss especially easily, also give transportation simultaneously, installation and maintenance bring difficulty, so greater than 4, during the above capacity of 2MK, general producer just can't produce at rated heating capacity.

The purpose of this utility model provides a kind of double grate, the horizontal double combustion chamber coal-fired hot-blast stove of double combustion chamber's structure.

The utility model is to realize like this; it comprises fire grate, and coal bunker is given air compartment; chamber wall; deashing chamber removes the grit chamber, fireguard; heat exchanger; the combustion chamber, chimney arch, wind isolation board; exhaust opening; heat exchanger tube, tube sheet, air intake and air outlet slit; in can be, be provided with cold air and reduce the preheated air passage of ignition temperature as the chamber wall that carries out preheating cold air heating surface; it is characterized in that being provided with in body of heater left combustion chamber and right combustion chamber, left fire grate and right fire grate are provided with the high temperature resistance protective layer of heat exchanger in the temperature end of rear portion heat exchanger.

The utility model is owing to be provided with two combustion chambers, and therefore two fire grates and heat exchanger protective layer can effectively solve hot-blast stove combustion chamber in the course of the work, the flimsy shortcoming of heat exchanger temperature end tube sheet and heat exchanger tube.

Below in conjunction with accompanying drawing the utility model is further described,

Fig. 1 is the structural representation of horizontal double combustion chamber coal-fired hot-blast stove,

Fig. 2 be Fig. 1 along A--A to profile,

Fig. 3 is the partial enlarged drawing of Fig. 1,

As Fig. 1--shown in 3; this horizontal double combustion chamber coal-fired hot-blast stove comprises fire grate 19; 20; coal bunker 1; give air compartment 2; chamber wall 3; deashing chamber 4; 6; 8; remove grit chamber 5; fireguard 11; heat exchanger 7; combustion chamber 15; 17; chimney arch 10; wind isolation board 16; exhaust opening 12; 13; heat exchanger tube 22; tube sheet 23; air intake 14 and air outlet slit 18; in can be, be provided with the preheated air passage that is used for the preheating cold air and reduces ignition temperature as the chamber wall 3 that carries out preheating cold air heating surface; in body of heater, be provided with left combustion chamber 15 and right combustion chamber 17; left side fire grate 19 and right fire grate 20; be provided with the high temperature resistance protective layer 21 of heat exchanger in the temperature end of rear portion heat exchanger, its operation principle is coal-firedly to enter combustion chamber 15 internal combustion by feeding-coal bucket 1 through fire grate 19, the ashes after burning under the effect of chimney arch 10; slag is by deashing chamber 4; removing grit chamber 5 discharges out of the furnace; high-temperature flue gas is through fireguard 11; heat exchanger 7,

deashing chamber

6 and 8, exhaust opening 12; 13 discharge; its heat transfer process is that cold air enters left chamber wall 3 by air inlet 14 and is preheated; enter right combustion wall 3 through wind isolation board 16 and continue to be heated, discharge by air outlet slit 18 then, enter the temperature supply hot-air use equipment that rear portion heat exchanger 7 is heated to requirement.

Claims

1, a kind of horizontal double combustion chamber coal-fired hot-blast stove comprises fire grate; coal bunker; give air compartment, chamber wall, deashing chamber; remove the grit chamber; fireguard, heat exchanger, combustion chamber; chimney arch; wind isolation board, exhaust opening, heat exchanger tube; tube sheet; air intake and air outlet slit are provided with cold air and reduce the preheated air passage of ignition temperature in can be as the chamber wall that carries out preheating cold air heating surface, it is characterized in that being provided with in body of heater left combustion chamber and right combustion chamber; a left side fire grate and right fire grate are provided with the high temperature resistance protective layer of heat exchanger in the temperature end of rear portion heat exchanger.