Stokehole briquetting biomass feeding device

Abstract

The utility model relates to the field of combustion furnaces, and particularly discloses a furnace front briquetting biomass feeding device which comprises a furnace body, the furnace body comprises a combustion chamber and a heating bin, and the furnace body further comprises a pressing feeding unit, and the pressing feeding unit is communicated with the combustion chamber of the furnace body; and the control unit is used for controlling the pressing and feeding unit to supply materials to the combustion chamber and is electrically connected with the pressing and feeding unit and the furnace body. According to the scheme, the pressing and feeding unit can be matched with the control unit, the opportunity of feeding the biomass fuel into the combustion chamber is automatically controlled, pressing, conveying and automatic feeding of the biomass fuel are achieved, the feeding efficiency is high, the biomass fuel only needs to be added into the pressing and feeding unit, the difficulty of adding the biomass fuel is low, and safety is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to combustion furnace technical field especially relates to a stove front briquetting biomass feeding device. BACKGROUND

[0002] Biomass fuel is to burn biomass material as fuel, mainly from agricultural and forestry waste, is a renewable, low-carbon and resource-rich energy. Biomass fuel is mainly divided into biomass briquetting fuel and biomass solid briquetting fuel. Biomass briquetting fuel is made by crushing, mixing, extruding, drying and other processes, which can be directly burned; Biomass solid briquetting fuel includes biomass particles, wood block, wood chips and so on. As a clean, low-carbon energy form, biomass fuel has broad development prospects.

[0003] When the biomass fuel is treated by crushing, mixing, extruding, drying and other steps, it will form a block of compressed biomass fuel. When the blocky biomass fuel is burned, the blocky biomass fuel stored is generally transferred to the boiler by artificial for combustion. The timing of the delivery needs artificial experience judgment, and the judgment of the delivery timing requires higher experience requirement, which is more labor-intensive. At the same time, the process of delivery is time-consuming and laborious, and there is a risk of being scalded. UTILITY MODEL CONTENT

[0004] In view of the deficiencies existing in the prior art, the utility model provides a stove front briquetting biomass feeding device to solve the problem that the blocky biomass fuel is transferred to the boiler for combustion, the timing of the delivery needs artificial experience judgment, the judgment of the delivery timing requires higher experience requirement, which is more labor-intensive and has the risk of being scalded.

[0005] In order to achieve the above purpose, the basic scheme of the utility model is as follows: a stove front briquetting biomass feeding device, comprising a furnace body, the furnace body comprising a combustion chamber and a heating bin, further comprising:

[0006] The pressing feeding unit is in communication with the combustion chamber of the furnace body;

[0007] The control unit controls the pressing feeding unit to supply the combustion chamber, and the control unit is electrically connected with the pressing feeding unit and the furnace body.

[0008] The technical principle of the utility model is that when the stove front briquetting biomass feeding device is used, the pressing feeding unit can press the biomass fuel which is crushed, mixed and dried in sequence, and can cooperate with the control unit to more automatically control the timing of the biomass fuel delivery into the combustion chamber, realize the pressing, conveying and automatic feeding of the biomass fuel, the feeding efficiency is high, the biomass fuel only needs to be added to the pressing feeding unit, and the difficulty of biomass fuel addition is low and the safety is high.

[0009] Further, the pressing feeding unit comprises:

[0010] a conveying and pressing cylinder, an axis of the conveying and pressing cylinder is horizontally arranged;

[0011] a screw rod, the screw rod is horizontally and coaxially installed in the conveying and pressing cylinder;

[0012] a spiral blade, the spiral blade is coaxially and fixedly installed on the screw rod, an outer edge of the spiral blade is attached to an inner wall of the conveying and pressing cylinder;

[0013] a power unit, the power unit drives the screw rod to rotate, the power unit is electrically connected with the control unit;

[0014] a feeding hopper, the feeding hopper is communicated with an upper side of one end of the conveying and pressing cylinder;

[0015] a discharging pipe, the discharging pipe is communicated with a lower side of an end of the conveying and pressing cylinder which is away from the feeding hopper, the discharging pipe is communicated with a combustion chamber of the furnace body.

[0016] Through the above arrangement, when the biomass fuel is put, conveyed, pressed and put again, the power unit controls the screw rod and the spiral blade to rotate, the biomass fuel in the feeding hopper is automatically put into the conveying and pressing cylinder, the screw rod drives the spiral blade to roll and horizontally convey the biomass fuel, so that the biomass fuel is slightly pressed, the biomass fuel is more convenient to convey to the discharging pipe and discharge, the conveying, pressing and putting of the biomass fuel are completed, the artificial only needs to put the biomass fuel into the feeding hopper, the putting is safe and efficient, the conveying, pressing and putting steps of the biomass fuel are simplified, and the putting and using efficiency of the biomass fuel is high.

[0017] Further, the power unit comprises:

[0018] a driving wheel;

[0019] an electric motor, the electric motor drives the driving wheel to rotate, the electric motor is fixedly installed on the conveying and pressing cylinder, the driving wheel is coaxially and fixedly installed on a power output shaft of the electric motor;

[0020] a driven wheel, the driven wheel is coaxially installed on one end of the screw rod, the driven wheel is located outside the conveying and pressing cylinder, and an axis of the driven wheel is parallel to an axis of the driving wheel;

[0021] a transmission belt, the transmission belt is tensioned on the driven wheel and the driving wheel.

[0022] Through the above arrangement, the electric motor drives the driving wheel to rotate, the driving wheel and the transmission belt drive the driven wheel and the screw rod to rotate, the screw rod and the spiral blade stably convey and press the biomass fuel, and the putting and pressing efficiency of the biomass fuel is improved.

[0023] Further, the driven wheel is located on one end of the conveying and pressing cylinder which is close to the feeding hopper.

[0024] Through the above arrangement, the screw near the hopper end can output more powerful power, so that the biomass fuel in the feed hopper can be smoothly conveyed into the conveying and pressing cylinder, facilitating the pressing and conveying of the biomass fuel.

[0025] Further, the control unit comprises:

[0026] a temperature sensor, the temperature sensor being installed in the heating bin of the furnace body;

[0027] a first controller for controlling the start or stop of the motor;

[0028] a one-way valve, the one-way valve being installed on the discharge pipe;

[0029] a second controller for controlling the opening or closing of the one-way valve;

[0030] a contact sensor arranged in the feed hopper;

[0031] an alarm;

[0032] a PLC controller, the PLC controller being electrically connected with the temperature sensor, the first controller, the second controller, the contact sensor and the alarm, and the PLC controller controlling the alarm to be turned on when the contact sensor does not contact the biomass fuel.

[0033] Through the above arrangement, the PLC controller can cooperate with the temperature sensor and the first controller, and when the received temperature is lower than the preset temperature, the PLC controller controls the motor to start through the first controller, so as to realize automatic feeding of the biomass fuel; when the contact sensor receives that there is no biomass fuel in the feed hopper, the contact sensor transmits a signal to the PLC controller, the PLC controller controls the alarm to be started, reminding the staff to add biomass fuel, at this time, the biomass fuel can be added from the feed hopper, and the difficulty of adding the biomass fuel is low and the safety is high.

[0034] Further, the longitudinal section profile of the discharge pipe is in the shape of "L", and the angle at the corner of the longitudinal section profile of the discharge pipe is greater than 120° and less than 180°.

[0035] Through the above arrangement, the bending angle of the discharge pipe is larger, and the biomass fuel can more smoothly pass through the discharge pipe into the combustion chamber of the furnace body, and the feeding is more efficient.

[0036] Further, the end of the discharge pipe away from the conveying and pressing cylinder is located outside the range of the conveying and pressing cylinder.

[0037] Through the above arrangement, the discharge pipe can smoothly extend and communicate to the combustion chamber of the furnace body, facilitating efficient feeding of the biomass fuel. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1It is a structure schematic view of the furnace front briquetting biomass feeding device in the embodiment of the utility model in the shaft side direction.

[0039] Figure 2 It is a structure schematic view of the furnace front briquetting biomass feeding device in the embodiment of the utility model in the main view direction.

[0040] Figure 3 It is Figure 2 The sectional view at A-A.

[0041] In the above drawing: conveying pressing cylinder 10, screw rod 20, spiral blade 201, driving wheel 301, motor 302, driven wheel 303, conveying belt 304, feeding hopper 401, discharge pipe 402, contact sensor 403. Specific implementation

[0042] The technical scheme in the utility model is further explained below in combination with the drawings and embodiments.

[0043] The embodiment is basically as shown in Figure 1 , Figure 2 and Figure 3 The embodiment of the utility model proposes a furnace front briquetting biomass feeding device, which comprises a furnace body, a pressing feeding unit and a control unit for controlling the pressing feeding unit to feed into a combustion chamber.

[0044] As shown in Figures 1-3 The pressing feeding unit comprises a conveying pressing cylinder 10, a screw rod 20, a spiral blade 201 coaxially fixedly installed on the screw rod 20, a power part for driving the screw rod 20 to rotate, a feeding hopper 401 and a discharge pipe 402. The power part comprises a driving wheel 301, a motor 302 for driving the driving wheel 301 to rotate, a driven wheel 303 and a conveying belt 304. The axis of the conveying pressing cylinder 10 is horizontally arranged. The screw rod 20 is horizontally and coaxially rotatably installed in the conveying pressing cylinder 10. The outer edge of the spiral blade 201 is attached to the inner wall of the conveying pressing cylinder 10. The feeding hopper 401 is in communication with the upper side of the left end of the conveying pressing cylinder 10. The discharge pipe 402 is in communication with the lower side of the right end of the conveying pressing cylinder 10. The discharge pipe 402 is in communication with the combustion chamber of the furnace body. At the same time, the motor 302 is fixedly installed on the conveying pressing cylinder 10. The driving wheel 301 is coaxially integrally formed on the power output shaft of the motor 302. The driven wheel 303 is coaxially welded on the left end of the screw rod 20. The driven wheel 303 is located outside the conveying pressing cylinder 10, and the axis of the driven wheel 303 is parallel to the axis of the driving wheel 301. The conveying belt 304 is tensioned on the driven wheel 303 and the driving wheel 301. The driven wheel 303 is located on the left end of the conveying pressing cylinder 10.

[0045] As shown in Figure 3As shown, the control unit comprises a temperature sensor, a first controller for controlling the start or stop of the motor 302, a one-way valve, a second controller for controlling the opening or closing of the one-way valve, a contact sensor 403 arranged in the feed hopper 401, an alarm and a PLC controller. The temperature sensor is arranged in the heating bin of the furnace body. The one-way valve is arranged on the discharge pipe 402 and located between the discharge pipe 402 and the conveying pressing cylinder 10. The PLC controller is electrically connected with the temperature sensor, the first controller, the second controller, the contact sensor 403 and the alarm. When the contact sensor 403 does not contact the biomass fuel, the PLC controller controls the alarm to open.

[0046] In addition, as shown in Figure 1 and Figure 2 The longitudinal section profile of the discharge pipe 402 is in the shape of "L", the angle of the corner of the longitudinal section profile of the discharge pipe 402 is 120°, and the end of the discharge pipe 402 away from the conveying pressing cylinder 10 is located outside the range of the conveying pressing cylinder 10.

[0047] In use, the biomass fuel after being sequentially crushed, mixed and dried is placed into the feed hopper 401, and the feed hopper 401 holds a large amount of biomass fuel. When the temperature sensor detects the temperature in the heating bin in real time, the PLC controller receives the temperature, compares the temperature with the preset temperature, and when the received temperature is lower than the preset temperature, the PLC controller controls the motor 302 to start through the first controller. The motor 302 drives the driving wheel 301 to rotate, and the driving wheel 301 and the conveyor belt 304 drive the driven wheel 303 and the screw rod 20 to rotate, and then the screw rod 20 drives the spiral blade 201 to rotate. At this time, the biomass fuel in the feed hopper 401 automatically enters the conveying pressing cylinder 10, and the screw rod 20 drives the spiral blade 201 to roll and horizontally convey the biomass fuel, so as to slightly press the biomass fuel, which is more convenient for the biomass fuel to be conveyed to the discharge pipe 402 and discharged. At this time, the PLC controller controls the one-way valve to be in the open state through the second controller. The slightly pressed biomass fuel can enter the combustion chamber of the furnace body through the discharge pipe 402, so as to realize the feeding of the biomass fuel. The biomass fuel realizes pressing, conveying and automatic feeding, and the feeding efficiency is high.

[0048] When the contact sensor 403 receives that there is no biomass fuel in the feed hopper 401, the contact sensor 403 transmits a signal to the PLC controller, the PLC controller controls the alarm to start, reminding the staff to add biomass fuel. At this time, the biomass fuel can be added from the feed hopper 401, and the difficulty of adding biomass fuel is low and the safety is high.

[0049] Finally, it is explained that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced by equivalents without departing from the purpose and scope of the present application. The technical solutions of the present application should be covered in the scope of the claims of the present application.

Claims

1. A briquetted biomass feed device for a stove comprising a stove body, the stove body comprising a combustion chamber and a heating bin, characterised in that, Also comprising: a pressing feeding unit, which is in communication with the combustion chamber of the furnace body; a control unit for controlling the pressing feeding unit to feed the combustion chamber, which is electrically connected with the pressing feeding unit and the furnace body; the control unit comprises: a temperature sensor, which is installed in the heating bin of the furnace body; a first controller for controlling the start or stop of the motor; a one-way valve, which is installed on the discharge pipe; a second controller for controlling the opening or closing of the one-way valve; a contact sensor arranged in the feeding hopper; an alarm; a PLC controller, which is electrically connected with the temperature sensor, the first controller, the second controller, the contact sensor and the alarm, and controls the alarm to open when the contact sensor does not contact the biomass fuel.

2. A front-charging briquette biomass feeding device according to claim 1, characterized in that, the pressing feeding unit comprises: a conveying pressing cylinder, the axis of which is arranged horizontally; a screw, which is coaxially and horizontally installed in the conveying pressing cylinder; a spiral blade, which is coaxially and fixedly installed on the screw, and the outer edge of which is in contact with the inner wall of the conveying pressing cylinder; a power part for driving the screw to rotate, which is electrically connected with the control unit; a feeding hopper, which is in communication with the upper side of one end of the conveying pressing cylinder; a discharge pipe, which is in communication with the lower side of the end of the conveying pressing cylinder away from the feeding hopper, and is in communication with the combustion chamber of the furnace body.

3. A front-charging briquette biomass feeding device according to claim 2, characterized in that, the power part comprises: a driving wheel; a motor for driving the driving wheel to rotate, which is fixedly installed on the conveying pressing cylinder, and the driving wheel is coaxially and fixedly installed on the power output shaft of the motor; a driven wheel, which is coaxially installed on one end of the screw, and is located outside the conveying pressing cylinder, and the axis of the driven wheel is parallel to the axis of the driving wheel; a conveyor belt, which is tensioned on the driven wheel and the driving wheel.

4. A front-charging briquette biomass feeding device according to claim 3, characterized in that, the driven wheel is located on the end of the conveying pressing cylinder close to the feeding hopper.

5. A front-charging briquette biomass feeding device according to claim 2, characterized in that, the longitudinal section profile of the discharge pipe is "L" shaped, and the angle at the corner of the longitudinal section profile of the discharge pipe is greater than 120° and less than 180°.

6. A front-charging briquette biomass feeding device according to claim 5, characterised in that, the end of the discharge pipe away from the conveying pressing cylinder is located outside the range of the conveying pressing cylinder.

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