Industrial waste heat recovery boiler

Abstract

The utility model provides an industrial waste heat recovery boiler. The industrial waste heat recovery boiler comprises a base plate, a combustion box used for containing fuel is arranged on the base plate, and a boiler tank is arranged at the top of the combustion box; the exhaust pipe is used for exhausting steam and is arranged at the top of the boiler tank; the recycling box is used for recycling waste heat, the recycling box is fixedly installed on one side of the boiler tank, a spiral pipe used for guiding and conveying fuel waste heat is fixedly installed in the recycling box, and the air inlet end of the spiral pipe extends out of the recycling box and is fixedly communicated with the combustion box; and the slag discharging mechanism is used for cleaning and discharging fuel slag in the combustion box, and the slag discharging mechanism is arranged on the combustion box. The industrial waste heat recovery boiler provided by the utility model has a conventional heat energy transfer function, can collect waste heat for recycling, and is beneficial to improving the energy utilization efficiency and reducing the energy waste.

Description

Technical Field

[0001] The utility model belongs to the technical field of boilers, and in particular relates to an industrial waste heat recovery boiler. Background Art

[0002] Industrial boilers are important thermal power equipment that convert the chemical energy of fuel into thermal energy through fuel combustion, and then transfer the thermal energy to water or other substances through heat transfer.

[0003] However, during the use of existing industrial boilers, the chemical energy in the fuel is converted into thermal energy, and a large amount of waste heat is also generated. This waste heat is usually discharged in the form of high-temperature flue gas or hot water. If this waste heat is discharged directly, a large amount of energy will be wasted.

[0004] Therefore, it is necessary to provide an industrial waste heat recovery boiler to solve the above technical problems. Utility Model Content

[0005] The utility model provides an industrial waste heat recovery boiler, which is intended to solve the technical problem in the above background technology that a large amount of waste heat is generated during use of industrial boilers, resulting in energy waste.

[0006] The industrial waste heat recovery boiler provided by the utility model comprises: a base plate, a combustion box for placing fuel is arranged on the base plate, and a boiler tank is arranged on the top of the combustion box; an exhaust pipe for discharging steam, and the exhaust pipe is arranged on the top of the boiler tank; a recovery box for recovering waste heat for reuse, the recovery box is fixedly installed on one side of the boiler tank, and a spiral pipe for guiding the waste heat of the fuel is fixedly installed in the recovery box, and the air inlet end of the spiral pipe extends out of the recovery box and is fixedly connected to the combustion box; a slag discharge mechanism for cleaning and discharging fuel slag in the combustion box, and the slag discharge mechanism is arranged on the combustion box.

[0007] As a further solution of the utility model, the slag discharge mechanism includes a slag discharge pipe, an auger, a motor and a coupling. The slag discharge pipe is fixedly installed at the bottom of the combustion box, the auger is rotatably installed in the slag discharge pipe, the motor is fixedly installed on one end of the slag discharge pipe, the coupling is fixedly installed on the output shaft of the motor, and one end of the coupling is fixedly connected to one end of the shaft of the auger.

[0008] As a further solution of the utility model, a variable frequency fan for supplying air to the combustion box to assist combustion is provided on the base plate, an air supply pipe is fixedly installed on the air outlet end of the variable frequency fan, the air outlet end of the air supply pipe is fixedly connected to the combustion box, and a valve for controlling the air outlet volume is provided on the air supply pipe.

[0009] As a further solution of the utility model, water pipes for water replenishment and drainage are fixedly installed on one side of the boiler tank and the recovery box, and water valves are provided on the water pipes.

[0010] As a further solution of the utility model, a protective shell is fixedly installed on the base plate, and a passage for people to pass through is opened on one side of the protective shell.

[0011] As a further solution of the utility model, a slag discharge port matched with the slag discharge pipe is provided at the bottom of the combustion box, a pull-out and detachable baffle is slidably installed in the slag discharge port, a slag outlet is provided on the slag discharge pipe, and a collection box for receiving fuel slag is provided at the bottom of the base plate.

[0012] As a further solution of the utility model, the top of the recovery box is fixedly connected to an air outlet pipe, a feeding port for adding fuel is opened on one side of the combustion box, a hinge is fixedly installed on the combustion box, a baffle for covering the feeding port is fixedly installed on the hinge, and a screw handle lock is provided on the baffle.

[0013] Compared with the related art, the industrial waste heat recovery boiler provided by the utility model has the following beneficial effects:

[0014] The utility model provides an industrial waste heat recovery boiler:

[0015] An industrial waste heat recovery boiler can be constructed by setting components such as a base plate, a combustion box, a boiler tank, an exhaust pipe, a recovery box and a spiral pipe, thereby realizing the recovery and reuse of a large amount of waste heat generated during the use of the industrial boiler, improving energy utilization efficiency and reducing energy waste. The slag discharge mechanism can save effort and conveniently clean and discharge fuel slag, and the variable frequency fan can be used in conjunction with the air supply pipe to supply air to the combustion box, which helps to fully burn the fuel. The baffle can prevent the fuel from falling in a closed state, and the fuel slag can be conveniently discharged when it is extracted. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0017] Figure 1 A schematic structural diagram of a preferred embodiment of an industrial waste heat recovery boiler provided by the utility model;

[0018] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 3 for Figure 2 Schematic diagram of the enlarged structure of part A.

[0020] In the figure: 1. base plate; 2. combustion box; 3. boiler tank; 4. exhaust pipe; 5. recovery box; 6. spiral pipe; 7. slag discharge pipe; 8. auger; 9. motor; 10. coupling; 11. variable frequency fan; 12. air supply pipe; 13. valve; 14. water pipe; 15. water valve; 16. protective shell; 17. collection box. DETAILED DESCRIPTION

[0021] Please refer to Figure 1-Figure 3 ,in, Figure 1 A structural schematic diagram of a preferred embodiment of an industrial waste heat recovery boiler provided by the utility model; Figure 2 This is a schematic diagram of the main structure of the utility model; Figure 3 for Figure 2 Schematic diagram of the enlarged structure of part A.

[0022] The industrial waste heat recovery boiler comprises: a base plate 1, on which a combustion box 2 for placing fuel is arranged, and a boiler tank 3 is arranged on the top of the combustion box 2; an exhaust pipe 4 for discharging steam, and the exhaust pipe 4 is arranged on the top of the boiler tank 3; a recovery box 5 for recovering waste heat for reuse, the recovery box 5 is fixedly installed on one side of the boiler tank 3, and a spiral pipe 6 for guiding the waste heat of the fuel is fixedly installed in the recovery box 5, and the air inlet end of the spiral pipe 6 extends out of the recovery box 5 and is fixedly connected to the combustion box 2; a slag discharge mechanism for cleaning and discharging the fuel slag in the combustion box 2, and the slag discharge mechanism is arranged on the combustion box 2. By means of the components such as the base plate 1, the combustion box 2, the boiler tank 3, the exhaust pipe 4, the recovery box 5 and the spiral pipe 6, an industrial waste heat recovery boiler can be constituted, which realizes the recovery and reuse of a large amount of waste heat generated by the industrial boiler during use, improves energy utilization efficiency, and reduces energy waste.

[0023] The slag discharge mechanism includes a slag discharge pipe 7, an auger 8, a motor 9 and a coupling 10. The slag discharge pipe 7 is fixedly installed at the bottom of the combustion box 2, the auger 8 is rotatably installed in the slag discharge pipe 7, the motor 9 is fixedly installed on one end of the slag discharge pipe 7, the coupling 10 is fixedly installed on the output shaft of the motor 9, and one end of the coupling 10 is fixedly connected to one end of the shaft of the auger 8. By setting up the slag discharge mechanism, the fuel slag can be cleaned and discharged labor-savingly and conveniently.

[0024] The base plate 1 is provided with a variable frequency fan 11 for supplying air into the combustion box 2 to assist combustion. An air supply pipe 12 is fixedly installed on the air outlet end of the variable frequency fan 11. The air outlet end of the air supply pipe 12 is fixedly connected to the combustion box 2, and the air supply pipe 12 is provided with a valve 13 for controlling the air outlet volume. The variable frequency fan 11 is provided in conjunction with the air supply pipe 12 to supply air into the combustion box 2, which helps to fully burn the fuel.

[0025] A water pipe 14 for water replenishment and drainage is fixedly installed on one side of the boiler tank 3 and the recovery box 5 , and a water valve 15 is provided on the water pipe 14 .

[0026] A protective shell 16 is fixedly mounted on the base plate 1 , and a passage for people to pass through is opened on one side of the protective shell 16 .

[0027] A slag discharge port matched with the slag discharge pipe 7 is provided at the bottom of the combustion box 2, a pull-out and detachable baffle is slidably installed in the slag discharge port, a slag outlet is provided on the slag discharge pipe 7, and a collecting box 17 for receiving fuel slag is provided at the bottom of the base plate 1. The baffle can prevent the fuel from falling in the closed state, and the fuel slag can be conveniently discharged when it is pulled out.

[0028] The top of the recovery box 5 is fixedly connected to an air outlet pipe, a feeding port for adding fuel is provided on one side of the combustion box 2, a hinge is fixedly installed on the combustion box 2, a baffle for covering the feeding port is fixedly installed on the hinge, and a screw handle lock is provided on the baffle.

[0029] It is worth noting that the circuits, electronic components and modules involved in the present utility model are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by the present utility model does not involve improvements to software and methods.

[0030] The working principle of the industrial waste heat recovery boiler provided by the utility model is as follows:

[0031] This solution also has an electric control cabinet, which is installed on the equipment. When in use, each electrical device can be started and operated through the electric control cabinet. The power connection method of each electrical device is an existing mature technology, which is a well-known technology for people in this field and will not be described in detail here.

[0032] When in use, fuel is added into the combustion box 2 through the feeding port. The combustion of the fuel can heat the water in the boiler tank 3 to generate steam for external use. During the combustion of the fuel, the waste heat discharged along the spiral tube 6 can be conducted to heat the water in the recovery box 5, so that the waste heat can be reused. The steam generated by the heated water can be reasonably utilized. During use, the variable frequency fan 11 can be started to supply air to the combustion box 2 as needed, which is beneficial to combustion. The air supply volume is controlled by the valve 13.

[0033] When discharging fuel slag, the baffle can be pulled out, and then the motor 9 is started to drive the coupling 10, and the coupling 10 drives the auger 8 to rotate, and the fuel slag is discharged from the slag discharge pipe 7, so that the waste slag cleaning can be completed labor-saving and convenient.

[0034] In summary, the industrial waste heat recovery boiler realizes the recovery and reuse of a large amount of waste heat generated by the industrial boiler during use through the above design, improves energy utilization efficiency and reduces energy waste.

[0035] Compared with the related art, the industrial waste heat recovery boiler provided by the utility model has the following beneficial effects:

[0036] The utility model provides an industrial waste heat recovery boiler. The industrial waste heat recovery boiler can be formed by arranging components such as a base plate 1, a combustion box 2, a boiler tank 3, an exhaust pipe 4, a recovery box 5 and a spiral tube 6, thereby realizing the recovery and reuse of a large amount of waste heat generated by the industrial boiler during use, improving energy utilization efficiency and reducing energy waste. The slag discharge mechanism can save effort and conveniently clean and discharge fuel slag. The variable frequency fan 11 and the air supply pipe 12 can supply air to the combustion box 2, which is conducive to the full combustion of the fuel. The baffle can prevent the fuel from falling in a closed state, and the fuel slag can be conveniently discharged when it is extracted.

[0037] It should be noted that the equipment structure and drawings of the utility model mainly describe the principle of the utility model. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in this field understand the principle of the above utility model, the details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in this field;

[0038] The standard parts used therein can all be purchased from the market and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the structures and principles of the components known to technical personnel in this field can be known by these technical personnel through technical manuals or through conventional experimental methods.

[0039] Although the embodiments of the present invention have been shown and described, it is understandable to those skilled in the art that various changes, modifications, substitutions and variations or direct or indirect applications may be made to these embodiments without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the attached claims and their equivalents, which are equally included in the scope of patent protection of the present invention.

Claims

1. An industrial waste heat recovery boiler, characterized in that: include: A base plate, wherein a combustion box for placing fuel is arranged on the base plate, and a boiler tank is arranged on the top of the combustion box; an exhaust pipe for discharging steam, the exhaust pipe being arranged on the top of the boiler tank; A recovery box for recovering waste heat for reuse, the recovery box being fixedly mounted on one side of the boiler tank, a spiral tube for conducting waste heat of fuel being fixedly mounted inside the recovery box, an air inlet end of the spiral tube extending out of the recovery box and being fixedly connected to the combustion box; A slag discharge mechanism is used for cleaning and discharging fuel slag in the combustion box, and the slag discharge mechanism is arranged on the combustion box.

2. The industrial waste heat recovery boiler according to claim 1, characterized in that: The slag discharge mechanism includes a slag discharge pipe, an auger, a motor and a coupling. The slag discharge pipe is fixedly installed at the bottom of the combustion box, the auger is rotatably installed in the slag discharge pipe, the motor is fixedly installed on one end of the slag discharge pipe, the coupling is fixedly installed on the output shaft of the motor, and one end of the coupling is fixedly connected to one end of the shaft of the auger.

3. The industrial waste heat recovery boiler according to claim 1, characterized in that: A variable frequency fan for supplying air to the combustion box to assist combustion is arranged on the base plate, an air supply pipe is fixedly installed on the air outlet end of the variable frequency fan, the air outlet end of the air supply pipe is fixedly connected to the combustion box, and a valve for controlling the air outlet volume is arranged on the air supply pipe.

4. The industrial waste heat recovery boiler according to claim 1, characterized in that: Water pipes for water replenishment and drainage are fixedly installed on one side of the boiler tank and the recovery box, and water valves are arranged on the water pipes.

5. The industrial waste heat recovery boiler according to claim 1, characterized in that: A protective shell is fixedly mounted on the base plate, and a passage for people to pass through is opened on one side of the protective shell.

6. The industrial waste heat recovery boiler according to claim 2, characterized in that: The bottom of the combustion box is provided with a slag discharge port adapted to the slag discharge pipe, a removable baffle is slidably installed in the slag discharge port, the slag discharge pipe is provided with a slag outlet, and the bottom of the base plate is provided with a collection box for receiving fuel slag.

7. The industrial waste heat recovery boiler according to claim 1, characterized in that: The top of the recovery box is fixedly connected with an air outlet pipe, one side of the combustion box is provided with a feeding port for adding fuel, a hinge is fixedly installed on the combustion box, a baffle for covering the feeding port is fixedly installed on the hinge, and a screw handle lock is provided on the baffle.

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