CN211976862U

CN211976862U - Boiler with inclined fixed grate

Info

Publication number: CN211976862U
Application number: CN202020485895.3U
Authority: CN
Inventors: 吕世发; 赵航; 王义龙; 李昂; 从日升; 辛福来
Original assignee: DANDONG BLUESKY ENVIRONMENT PROTECTION BOILERS CO LTD
Current assignee: DANDONG BLUESKY ENVIRONMENT PROTECTION BOILERS CO LTD
Priority date: 2020-04-07
Filing date: 2020-04-07
Publication date: 2020-11-20
Anticipated expiration: 2030-04-07

Abstract

The utility model belongs to the technical field of the boiler and specifically relates to a boiler with fixed grate of slope is, furnace body are inside to fall into combustion chamber and heat transfer room through the baffle, just the baffle upper end forms the thermovent be equipped with the fixed grate of slope in the combustion chamber lower extreme one side be equipped with the parallel material feeding unit of the fixed grate of slope, just the upper end of the fixed grate of slope with material feeding unit's output links up, the inclination alpha of the fixed grate of slope is 6 ~ 18 degrees, the combustion chamber lower extreme is equipped with down the oxygen distribution port, the combustion chamber middle part is equipped with ignition door and well oxygen distribution port, combustion chamber upper portion is equipped with the oxygen distribution port. The utility model discloses make the fuel pass through material feeding unit and send to the slope automatically on the fixed grate to along with the continuous input of fuel, the fuel can slowly move down the burning fully on the fixed grate of slope, thereby can not form the slagging scorification on the grate, reduce workman manipulation strength, simple structure is durable and low cost.

Description

Boiler with inclined fixed grate

Technical Field

The utility model belongs to the technical field of the boiler and specifically relates to a boiler with slope fixed grate.

Background

Boilers generally comprise a combustion chamber and a heat exchange chamber, and a grate is an important component in the combustion chamber. The fire grate mainly comprises a frame and fire grate sheets, wherein necessary ventilation gaps are kept between the sheets after the fire grate sheets are assembled, a ventilation chamber is further arranged below the fire grate so that air enters fuel through the gaps to support combustion, and burnt ash and slag are discharged through a manual or mechanical method.

The fire grate structure in the prior art mainly comprises a fixed type fire grate, a movable type fire grate, a reciprocating type fire grate, a vibrating type fire grate, a lower feeding type fire grate and the like, wherein the fixed type fire grate is usually horizontally and fixedly arranged at the bottom of a hearth or a combustion chamber, a fire grate plate part is of a fixed structure, the structure is relatively simple, the cost is lower, the fire grate is easy to generate slag bonding, manual slag removal is frequently needed, and therefore the operation intensity of workers is higher. The other types of fire grates are mostly provided with movable fire grate segments, but corresponding mechanical transmission mechanisms are required to be configured, for example, the movable fire grate comprises a chain belt type fire grate and a chain type fire grate, the chain is driven by a motor driving chain wheel to enable the fire grate segments to move slowly, the fire grate segments of the vibration type fire grate generate periodic vibration under the action of a motor and an eccentric wheel, the underfeed type fire grate is a trough-shaped fire grate, a motor-driven spiral rod is arranged at the bottom of the trough, the fire grate types can reduce the operation strength, but also have the problem of slagging, in addition, mechanical transmission faults which often occur cause user headaches, the structure is relatively complex, metal consumption is high, and the manufacturing cost of the boiler is improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a boiler with slope fixed grate, fuel pass through material feeding unit and send to the slope automatically on the fixed grate to along with the continuous input of fuel, the fuel can slowly move down the burning fully on the fixed grate of slope, thereby can not form the slagging scorification on the grate, reduce workman manipulation strength, simple structure is durable and low cost.

The purpose of the utility model is realized through the following technical scheme:

a boiler with an inclined fixed grate is characterized in that the interior of a boiler body is divided into a combustion chamber and a heat exchange chamber through a partition plate, a superheat opening is formed in the upper end of the partition plate, the inclined fixed grate is arranged in the lower end of the combustion chamber, a feeding device parallel to the inclined fixed grate is arranged on one side of the lower end of the combustion chamber, the upper end of the inclined fixed grate is connected with the output end of the feeding device, the inclination angle alpha of the inclined fixed grate is 6-18 degrees, a lower oxygen distribution opening is formed in the lower end of the combustion chamber, an ignition door and a middle oxygen distribution opening are formed in the middle of the combustion chamber, and an upper oxygen distribution opening is formed in the upper portion.

And the lower end of the combustion chamber is provided with a combustion chamber ash removal door, and the combustion chamber ash removal door is positioned at the lower end of the inclined fixed grate.

A water pipe is arranged in the heat exchange chamber, and a heat exchange chamber ash removal door is arranged at the lower end of the heat exchange chamber.

And a feeding hopper is arranged on the feeding device.

The utility model discloses an advantage does with positive effect:

1. the utility model discloses make the fuel pass through material feeding unit and send to the slope automatically on the fixed grate to along with the continuous input of fuel, the fuel can slowly move down the burning fully on the fixed grate of slope, thereby can not form the slagging scorification on the grate, reduce workman manipulation strength.

2. The utility model discloses it is combustion-supporting for the fuel on the slope fixed grate to be equipped with down the oxygen distribution port, and the flue gas oxygen distribution that the oxygen distribution port formed for the fuel burning is equipped with is combustion-supporting to be realized the postcombustion, and it is incomplete to be equipped with the regional internal combustion of the A who keeps away from overheat mouthful one side in avoiding the combustion chamber of oxygen distribution port, guarantees combustion efficiency.

3. The utility model discloses a fixed grate structure, simple structure is durable and low cost to can not appear such as mechanical transmission trouble scheduling problem leads to equipment to shut down.

Drawings

Figure 1 is a schematic structural diagram of the present invention,

FIG. 2 is a schematic view of the combustion state of the present invention without the oxygen distribution port.

The device comprises a combustion chamber 1, a lower oxygen distribution port 101, an upper oxygen distribution port 102, a middle oxygen distribution port 103, an ignition door 104, a combustion chamber ash removal door 105, a heat exchange chamber 2, a water pipe 201, a heat exchange chamber ash removal door 202, a partition plate 3, a feeding device 4, an inclined fixed grate 5, a feeding hopper 6 and an overheating port 7.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1, the utility model discloses a furnace body and material feeding unit 4, wherein the furnace body is inside to fall into combustion chamber 1 and heat transfer chamber 2 two parts through

baffle

3, 3 upper ends of baffle form the overheat mouth 7, and the heat process that the material produced after 1 internal combustion of combustion chamber the overheat mouth 7 gets into and realizes heating the heat transfer in the heat transfer chamber 2 be equipped with the fixed grate 5 of slope in the 1 lower extreme of combustion chamber 1 lower extreme one side of combustion chamber be equipped with the parallel material feeding unit 4 of the fixed grate 5 of slope, just the fixed grate 5's of slope upper end with material feeding unit 4's output links up, the inclination alpha of the fixed grate 5 of slope is 6 ~ 18 degrees. The utility model discloses the during operation, the fuel passes through material feeding unit 4 is automatic to be delivered to on the slope fixed grate 5 to along with the continuous input of fuel, the fuel can slowly move down on the slope fixed grate 5, and realize abundant burning at the slow removal in-process fuel, can not form the slagging scorification on the grate, thereby need not regularly frequently again through artifical slagging-off, greatly reduced workman manipulation strength. In this embodiment, the feeding device 4 is a conveying auger, which is a product known in the art and commercially available, and in addition, an encoder and other elements capable of controlling the rotating speed can be configured on a motor of the feeding device 4, so that the feeding speed of the feeding device 4 can be controlled to ensure that the fuel slowly moves on the inclined fixed grate 5, thereby achieving the purpose of full combustion.

As shown in fig. 1, the lower end of the combustion chamber 1 is provided with a lower oxygen distribution port 101, air entering from the lower oxygen distribution port 101 passes through a gap of the inclined fixed grate 5 and then supports combustion for fuel on the grate, the middle of the combustion chamber 1 is provided with an ignition door 104 and a middle oxygen distribution port 103, the ignition door 104 facilitates an operator to ignite fuel and observe combustion conditions at proper time, the middle oxygen distribution port 103 provides oxygen distribution for flue gas formed by fuel combustion and supports combustion for secondary combustion, the upper oxygen distribution port 102 is provided at the upper part of the combustion chamber 1 to ensure sufficient combustion, as shown in fig. 2, because the inclined fixed grate 5 is arranged in the lower end of the combustion chamber 1, the space at the upper side of the inclined fixed grate 5 in the combustion chamber 1 is large, if the upper oxygen distribution port 102 is not arranged, flame formed after fuel combustion will be guided to one side of the hot port 7, which will result in a region a far from one side of the hot port 7 in the combustion chamber 1 in incomplete secondary combustion, the combustion efficiency is reduced, and the complete combustion in the area A can be induced by the oxygen distribution through the upper oxygen distribution port 102, so that the combustion efficiency is ensured.

As shown in fig. 1, a combustion chamber ash removal door 105 is arranged at the lower end of the combustion chamber 1, and the combustion chamber ash removal door 105 is positioned at the lower end of the inclined fixed grate 5.

As shown in fig. 1, in this embodiment, a water pipe 201 is disposed in the heat exchange chamber 2, heat can enter the heat exchange chamber 2 through the hot port 7 and then can exchange heat with the water pipe 201 to realize water heating, the water pipe 201 is connected to a pipeline of a place where hot water needs to be used, and a heat exchange chamber ash removal door 202 is disposed at a lower end of the heat exchange chamber 2. The construction of the heat exchange chamber 2 is well known in the art.

As shown in fig. 1, a feeding hopper 6 is arranged on the feeding device 4 for feeding.

The utility model discloses a theory of operation does:

the utility model discloses the during operation, the fuel passes through material feeding unit 4 is automatic to be sent to on the fixed grate 5 of slope to along with the continuous input of fuel, the fuel can slowly move down on the fixed grate 5 of slope, the inclination alpha of the fixed grate 5 of slope is 6 ~ 18 degrees, and alpha angle undersize is difficult to realize the fuel and removes, can lead to the fuel to pile up, and too big then the fuel receives the action of gravity to move down fast easily, leads to the burning insufficient, the utility model discloses an experiment verifies many times, and only inclination alpha is when 6 ~ 18 degrees scopes, and the fuel can realize slow moving, and the fuel can realize abundant burning at the slow moving in-process to can not form the slagging-off on the grate, need not to pass through manual cleaning frequently again, only need open combustion chamber deashing door 105 regularly clear up can, greatly reduced workman manipulation strength. In addition the utility model discloses combustion chamber 1 is equipped with down joins in marriage oxygen mouth 101, well join in marriage oxygen mouth 103 and goes up and join in marriage oxygen mouth 102, by the air process that oxygen mouth 101 got into down is combustion-supporting for the fuel behind the gap of the fixed grate 5 of slope, well join in marriage oxygen mouth 103 and then join in marriage the combustion-supporting realization postcombustion of oxygen for the flue gas that the fuel burning formed, upward keep away from in joining in marriage oxygen mouth 102 in the combustion chamber 1 the regional internal combustion of A of overheated mouth 7 one side is incomplete, guarantees that the burning is abundant.

Claims

1. The utility model provides a boiler with slope fixed grate, the furnace body is inside to be divided into combustion chamber and heat transfer room through the baffle, just the baffle upper end forms the overheat mouthful, its characterized in that: the improved combustion chamber is characterized in that an inclined fixed grate (5) is arranged in the lower end of the combustion chamber (1), a feeding device (4) parallel to the inclined fixed grate (5) is arranged on one side of the lower end of the combustion chamber (1), the upper end of the inclined fixed grate (5) is connected with the output end of the feeding device (4), the inclination angle alpha of the inclined fixed grate (5) is 6-18 degrees, a lower oxygen distribution port (101) is arranged at the lower end of the combustion chamber (1), an ignition door (104) and a middle oxygen distribution port (103) are arranged in the middle of the combustion chamber (1), and an upper oxygen distribution port (102) is arranged at the upper part of the combustion chamber (1).

2. The boiler with inclined fixed grate of claim 1, wherein: the lower end of the combustion chamber (1) is provided with a combustion chamber ash removal door (105), and the combustion chamber ash removal door (105) is positioned at the lower end of the inclined fixed grate (5).

3. The boiler with inclined fixed grate of claim 1, wherein: a water pipe (201) is arranged in the heat exchange chamber (2), and a heat exchange chamber ash removal door (202) is arranged at the lower end of the heat exchange chamber (2).

4. The boiler with inclined fixed grate of claim 1, wherein: and a feeding hopper (6) is arranged on the feeding device (4).