CN206540107U - Hot-blast stove with boiler sootblowing steam generator - Google Patents

Abstract

The utility model essentially discloses the hot-blast stove with boiler sootblowing steam generator, including combustor, high temperature purification room, mixing chamber, steam generator, flue, air-introduced machine, high-temperature flue gas in combustor enters after the purification of high temperature purification room respectively by mixing chamber and steam generator, flue and air-introduced machine are located between mixing chamber and steam generator, provided with filtering wall in high temperature purification room, steam generator includes flue gas heat exchange passage, it is located at the water tank of flue gas heat exchange passage both sides, it is located in flue gas heat exchange passage and through the heat exchanger tube of two water tanks, steam generator sidepiece is provided with some soot blowers；Dual-purpose using a stove, investment, operating cost can be greatly reduced；Band soot blowing heat recovery steam generator is provided with, soot blower can be according to program setting timing deashing, and deashing is wide, there is no thermal loss, automatic ash blowing device, the thermal efficiency of steam generator will not be reduced because of dust stratification, the energy consumption of air-introduced machine will not also be increased because of dust stratification.

Description

Hot-blast stove with boiler sootblowing steam generator

Technical field

The utility model is related to the hot-blast stove with boiler sootblowing steam generator.

Background technology

Hot-blast stove starts extensive use in late 1970s as the hot-blast stove of thermal power machinery in China, and it is being permitted Multirow turns into the regeneration product of electric heat source and conventional vapor power heat source already.Using high-temperature flue gas hot-blast stove carry out filtering and Heat exchange, obtains the flue gas of technological requirement temperature, then removes dried material etc., you can again can exhaust gas utilization with environmental protection.

Now, steam boiler and hot-blast stove isolated operation, have that the thermal efficiency is low, discharge, due to high temperature Flue gas can allow the thermal efficiency of generator to reduce by dust stratification on pipe that can be in generator during heat recovery steam generator, dust stratification, Also the operation power of smoke induced draught fan can be increased, so needing deashing；Generally, made with the flue gas of biomass-burning hot-blast stove It is once a day, thermal loss, institute will to be produced when opening shoot door every time for the deashing frequency of the heat recovery steam generator of thermal source Wasted time and energy expense fuel with artificial deashing.

Utility model content

In view of the deficienciess of the prior art, the utility model provides the hot-blast stove with boiler sootblowing steam generator, and Disadvantages described above can be overcome.

In order to achieve the above object, the utility model is achieved through the following technical solutions：With boiler sootblowing steam generator Hot-blast stove, including combustor, high temperature purification room, mixing chamber, steam generator, flue, air-introduced machine, the height in combustor Warm flue gas enters after the purification of high temperature purification room respectively by mixing chamber and steam generator, and flue and air-introduced machine are located at mixed Close between room and steam generator, provided with filtering wall in high temperature purification room, steam generator includes flue gas heat exchange passage, is located at cigarette The water tank of gas heat exchanger channels both sides, some heat exchanger tubes for being located in flue gas heat exchange passage and running through two water tanks, steam generator side Portion is provided with some soot blowers.

As preferred：Provided with two filtering walls in the high temperature purification room, the steam generator outlet end passes through air inducing Machine is connected with flue entrance point, and the flue port of export is connected with mixing chamber, the high temperature purification room and mixing chamber, steam The first slide valve and the second slide valve are respectively equipped between generator.

The slide valve of this structure first and the second slide valve can control high-temperature flue gas by mixing chamber or steam generator at Filtering wall sedimented particle in reason, high temperature purification room, flue gas is returned by being introduced after steam generator by air-introduced machine after flue It is not only simple and reasonable into mixing chamber, and flue gas is made full use of, it is easy to operate.

As preferred：The water tank includes columnar structured upper water box and lower header, and exhaust outlet is located on upper water box, water Water inlet is additionally provided with case, lower header is provided with discharge outlet.

This structure upper water box and lower header are embedded in both sides above and below flue gas heat exchange passage respectively, and upper water box and lower header pass through Heat exchanger tube is connected, and compact conformation is added water and is vented and be more convenient.

As preferred：The heat exchanger tube is evenly distributed between two water tanks, for conveying water and steam.

As preferred：The flue gas heat exchange passage both sides of the steam generator are provided with corresponding soot blower 113, soot blower Including the high-pressure nozzle connected with flue gas heat exchange passage and the protective cover being located at outside high-pressure nozzle.

As preferred：The high-pressure nozzle is arranged to loudspeaker mouth structure, and air blowing scope is big.

As preferred：The combustor side is provided with mucking machine, combustion fan and fire grate reductor.

As preferred：Automatic ash blowing is realized after the work interval time of soot blower and blowing time are settable, it is easy to operate.

The utility model has the beneficial effect that：

First, dual-purpose using a stove, investment, operating cost can be greatly reduced；Second, sent out using band soot blowing afterheat steam Raw device, soot blower can be according to program setting timing deashing, and deashing is wide, without thermal loss, automatic ash blowing device, allows steam generation The thermal efficiency of device will not be reduced because of dust stratification, and the energy consumption of air-introduced machine will not also be increased because of dust stratification；Artificial deashing is different from, Automatic ash blowing, is exported without manpower, can almost reach comprehensive, thorough deashing, and deashing frequency is high；3rd, tail gas makes full use of, Exhaust temperature is low, and heat utilization efficiency is high, and fuel cost declines；4th, fuel is biomass, cleaner, environmental protection.

Brief description of the drawings

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

Fig. 2 is the structural representation of steam generator of the present utility model；

Fig. 3 is the schematic internal view of steam generator of the present utility model；

Fig. 4 is the internal structure schematic diagram of steam generator in embodiment of the present utility model；

The sectional view that Fig. 5 is A-A in Fig. 4；

Fig. 6 is the structural representation of embodiment high temperature clean room of the present utility model；

Fig. 7 is the structural representation of combustor in embodiment of the present utility model.

Brief description of the drawings：100th, combustor；101st, high temperature purification room；102nd, mixing chamber；103rd, steam generator；104th, flue gas Pipeline；105th, air-introduced machine；106th, wall is filtered；107th, flue gas heat exchange passage；108th, water tank；109th, heat exchanger tube；111st, the first flashboard Valve；112nd, the second slide valve；113rd, soot blower；114th, high-pressure nozzle；115th, protective cover；116th, water inlet；117th, discharge outlet； 118th, exhaust outlet；119th, mucking machine；120th, combustion fan；121st, fire grate reductor；122nd, upper water box；123rd, lower header.

Embodiment

With reference to accompanying drawing, the utility model preferred embodiment is described in further details.

Embodiment 1

Show such as Fig. 1-7, the hot-blast stove with boiler sootblowing steam generator, the hot-blast stove with boiler sootblowing steam generator, including Combustor 100, high temperature purification room 101, mixing chamber 102, steam generator 103, flue 104, air-introduced machine 105, combustor High-temperature flue gas in 100 enters after high temperature purification room 101 is purified respectively by mixing chamber 102 and steam generator 103, flue gas Pipeline 104 and air-introduced machine 105 are located between mixing chamber 102 and steam generator 103, provided with filtering wall in high temperature purification room 101 106, steam generator 103 includes flue gas heat exchange passage 107, is located at the water tank 108 of the both sides of flue gas heat exchange passage 107, is located at cigarette In gas heat exchanger channels 107 and through some heat exchanger tubes 109 of two water tanks 108, the sidepiece of steam generator 103 is provided with some soot blowings Device 113；Provided with two filtering walls 106 in the high temperature purification room 101, the port of export of steam generator 103 passes through air-introduced machine 105 are connected with the entrance point of flue 104, and the port of export of flue 104 is connected with mixing chamber 102, the high temperature purification room 101 The first slide valve 111 and the second slide valve 112 are respectively equipped between mixing chamber 102, steam generator 103；The heat exchanger tube 109 are evenly distributed between two water tanks 108；The both sides of flue gas heat exchange passage 107 of the steam generator 103 are provided with corresponding Soot blower 113, soot blower 113 includes the high-pressure nozzle 114 connected with flue gas heat exchange passage 107 and is located at outside high-pressure nozzle 114 The protective cover 115 in portion；The high-pressure nozzle 114 is arranged to loudspeaker mouth structure；The water tank 108 includes columnar structured upper water Case 122 and lower header 123, exhaust outlet 118 are located on upper water box 122, and water inlet 116, lower header 123 are additionally provided with water tank 122 It is provided with discharge outlet 117；The side of combustor 100 is provided with mucking machine 119, combustion fan 120 and fire grate reductor 121.

During practical operation, combustor 100 produces high-temperature flue gas, and the flue gas for obtaining cleaning is purified into clean room, passes through two The control of shoe brake plate, part of smoke goes heat recovery steam generator to produce steam, and low-temperature flue gas afterwards is returned to mixed by blower fan Air compartment；The flue gas of another part is directly entered wind mixed chamber, and two parts flue gas mixes and obtained technological requirement temperature in wind mixed chamber Flue gas, then removes dried material etc., and the present apparatus is drawn by biomass-burning hot-blast stove, heat recovery steam generator, soot blower and flue gas Blower fan and flue gas reuse pipeline etc. are constituted；A part of high-temperature flue gas come out by hot-blast stove high temperature purification room is sent out by afterheat steam Heat exchange occurs for life device, and its tail gas produced originally needs discharge, and we utilize smoke induced draught fan by low temperature cigarette in this part now Gas is mixed with another part high-temperature flue gas that high temperature purification room comes out, and according to technique needs, be mixed into a certain amount of normal temperature air with The hot blast temperature required by production is reached, for producing, the heat exchanger tube 109 between two water tanks is used for the steaming lower header up and down Vapour is discharged into upper water box；Lower header is provided with the moisturizing mouth of pipe, and steam is directly produced by the heating of high-temperature flue gas in addition；Heat exchange Tube material adopts what is be made of a steel, and the utility model is dual-purpose using a stove, and investment, operating cost can be greatly reduced；It is provided with band Soot blowing heat recovery steam generator, soot blower can be according to program setting timing deashing, and deashing is wide, without thermal loss, blows automatically Grey device, the thermal efficiency of steam generator will not be reduced because of dust stratification, the energy consumption of air-introduced machine will not also be increased because of dust stratification； Artificial deashing is different from, automatic ash blowing is exported without manpower, can almost reach comprehensive, thorough deashing, deashing frequency is high；Tail gas Make full use of, exhaust temperature is low, and heat utilization efficiency is high, and fuel cost declines；4th, fuel is biomass, cleaner, ring Protect.

Above-described embodiment is only used for illustrating utility model design of the present utility model, rather than to the utility model right The restriction of protection, all changes for carrying out unsubstantiality to the utility model using this design, all should fall into guarantor of the present utility model Protect scope.

Claims (7)

1. the hot-blast stove with boiler sootblowing steam generator, it is characterised in that：Including combustor (100), high temperature purification room (101), High-temperature flue gas in mixing chamber (102), steam generator (103), flue (104), air-introduced machine (105), combustor (100) Respectively by mixing chamber (102) and steam generator (103) after into high temperature purification room (101) purification, flue (104) And air-introduced machine (105) is located between mixing chamber (102) and steam generator (103), provided with filtering wall in high temperature purification room (101) (106), steam generator (103) includes flue gas heat exchange passage (107), is located at the water tank of flue gas heat exchange passage (107) both sides (108), it is located in flue gas heat exchange passage (107) and through some heat exchanger tubes (109) of two water tanks (108), steam generator (103) sidepiece, which is provided with the top of some soot blowers (113), water tank (108), is provided with exhaust outlet (118).

2. the hot-blast stove according to claim 1 with boiler sootblowing steam generator, it is characterised in that：The high temperature purification room (101) provided with two filtering walls (106) in, steam generator (103) port of export passes through air-introduced machine (105) and flue (104) entrance point is connected, and flue (104) port of export is connected with mixing chamber (102), and the high temperature purification room (101) is with mixing Close and be respectively equipped with the first slide valve (111) and the second slide valve (112) between room (102), steam generator (103).

3. the hot-blast stove according to claim 1 with boiler sootblowing steam generator, it is characterised in that：The water tank (108) Including columnar structured upper water box (122) and lower header (123), exhaust outlet (118) is located on upper water box (122), water tank (122) water inlet (116) is additionally provided with, lower header (123) is provided with discharge outlet (117).

4. the hot-blast stove according to claim 1 with boiler sootblowing steam generator, it is characterised in that：The heat exchanger tube (109) it is evenly distributed between two water tanks (108).

5. the hot-blast stove according to claim 1 with boiler sootblowing steam generator, it is characterised in that：The steam generator (103) flue gas heat exchange passage (107) both sides are provided with corresponding soot blower (113), and soot blower (113) includes and flue gas heat exchange The high-pressure nozzle (114) of passage (107) connection and the protective cover (115) for being located at high-pressure nozzle (114) outside.

6. the hot-blast stove according to claim 5 with boiler sootblowing steam generator, it is characterised in that：The high-pressure nozzle (114) it is arranged to loudspeaker mouth structure.

7. the hot-blast stove according to claim 1 with boiler sootblowing steam generator, it is characterised in that：The combustor (100) side is provided with mucking machine (119), combustion fan (120) and fire grate reductor (121).