A biomass thermal oil heater

Abstract

This utility model relates to the field of thermal oil heater technology, and in particular to a biomass thermal oil heater. By connecting the first connection port at the end of the oil outlet pipe to the oil inlet of the heat-using equipment, and connecting the second connection port at the end of the return oil pipe to the oil outlet of the heat-using equipment, an oil circuit is formed between the thermal oil coil and the heat-using equipment. When the thermal oil inside the thermal oil coil reaches the operating temperature, the first and third valves are opened, and the thermal oil pump is started to draw the thermal oil inside the thermal oil coil into the heat-using equipment through the oil outlet pipe. At the same time, the thermal oil drawn into the heat-using equipment can flow into the return oil pipe through the oil outlet of the heat-using equipment, and then flow back into the thermal oil coil for continuous heating. This forms a closed-loop circulation system between the thermal oil coil and the heat-using equipment, thereby ensuring a continuous supply of heat to the heat-using equipment and realizing continuous heat transfer.

Description

Technical Field

[0001] This utility model relates to the field of thermal oil furnace technology, and in particular to a biomass thermal oil furnace. Background Technology

[0002] With the dwindling known reserves of fossil fuels and mineral energy, traditional energy sources are rapidly approaching depletion. To proactively address the impending energy crisis, alternative renewable energy sources have been identified, and biomass energy is a renewable and recyclable energy source. For this reason, the development, recycling, and production of biomass fuels have received unprecedented attention in recent years. The raw materials for biomass fuels are primarily derived from agricultural and forestry waste, which is inexhaustible. Through a series of deep processing steps, biomass pellets or powders are typically produced. Combustion of these pellets or powders converts them into biomass energy, providing an alternative energy source for industry. This not only solves the problem of agricultural and forestry waste disposal but also reduces CO2 and other harmful gas emissions into the atmosphere.

[0003] In biomass combustion equipment, the thermal oil heater is a heating device that includes a furnace body and a burner; however, existing thermal oil heaters have the following problems in use:

[0004] (1) There is no oil circuit between the heat transfer oil and the heat-using equipment, so the heat transfer oil is not circulated between the heat transfer oil furnace and the heat-using equipment, and the heat transfer oil in the heat transfer oil furnace cannot be continuously supplied to the heat-using equipment to achieve continuous heat transfer.

[0005] (2) The flue gas produced by the combustion of the furnace contains a lot of particulate matter. The particulate matter is easy to adhere to the inner wall of the coil and form coke. Over time, the dirt on the inner wall of the coil will become thicker, which will lead to poor heat conduction.

[0006] (3) The heat released upward from the flue gas inside the furnace was not recovered and utilized;

[0007] Therefore, we propose a biomass thermal oil heater to solve the above problems. Utility Model Content

[0008] The purpose of this utility model is to address the shortcomings of the prior art by proposing a biomass thermal oil furnace.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a biomass thermal oil furnace, comprising a base, a screw feeder, a hopper, an oil furnace, a waste heat recovery cylinder, a dust collector, and a scraping mechanism, characterized in that: a screw feeder is fixedly installed on the left side of the base, a hopper is fixedly installed on the top of the screw feeder, an oil furnace is fixedly installed on the top of the base, a waste heat recovery cylinder is fixedly installed on the top of the oil furnace, a dust collector is fixedly installed on the top of the waste heat recovery cylinder, and a scraping mechanism is fixedly installed inside the oil furnace and the waste heat recovery cylinder;

[0010] The base includes a combustion chamber, an air chamber, a grate, air holes, and an air inlet pipe. The combustion chamber is fixedly installed in the center of the base. An air chamber is fixedly installed between the combustion chamber and the base. A grate is fixedly installed at the bottom of the combustion chamber. Multiple air holes are fixedly installed on the top surface of the combustion chamber and are connected through the air chamber. Air inlet pipes are fixedly installed on both sides of the base and are connected through the air chamber.

[0011] The oil furnace includes a heat transfer oil coil, an oil outlet pipe, a heat transfer oil pump, a first valve, a first connection port, a lower oil pipe, a second valve, a return oil pipe, a third valve, a second connection port, an oil inlet pipe, and a fourth valve. The heat transfer oil coil is fixedly installed on the inner wall of the oil furnace. An oil outlet pipe is fixedly installed at the bottom interface of the heat transfer oil coil. A heat transfer oil pump is fixedly installed on the left side of the surface of the oil outlet pipe. A first valve is fixedly installed on the right side of the surface of the oil outlet pipe. A first connection port is fixedly installed at the tail end of the oil outlet pipe. A lower oil pipe is fixedly installed at the bottom middle section of the oil outlet pipe. A second valve is fixedly installed on the middle section of the surface of the lower oil pipe. A return oil pipe is fixedly installed at the top interface of the heat transfer oil coil. A third valve is fixedly installed on the right side of the surface of the return oil pipe. A second connection port is fixedly installed at the tail end of the return oil pipe. An oil inlet pipe is fixedly installed at the top middle section of the return oil pipe. A fourth valve is fixedly installed on the middle section of the surface of the oil inlet pipe.

[0012] The waste heat recovery cylinder includes a copper coil, a water outlet pipe, a fifth valve, a third connection port, a water inlet pipe, a sixth valve, and a fourth connection port. The copper coil is fixedly installed on the inner wall of the waste heat recovery cylinder. The water outlet pipe is fixedly installed at the bottom interface of the copper coil. The fifth valve is fixedly installed in the middle of the surface of the water outlet pipe. The third connection port is fixedly installed at the tail end of the water outlet pipe. The water inlet pipe is fixedly installed at the top interface of the copper coil. The sixth valve is fixedly installed in the middle of the surface of the water inlet pipe. The fourth connection port is fixedly installed at the tail end of the water inlet pipe.

[0013] The scraping mechanism includes a mounting base, a rotating rod, a first gear seat, a motor, a shaft, a second gear seat, a first cleaning plate, a second cleaning plate, and copper wires. The mounting base is fixedly installed inside the top of the waste heat recovery cylinder. The rotating rod is rotatably connected to the bottom of the mounting base. The first gear seat is fixedly installed in the middle of the surface of the rotating rod. The motor is fixedly installed on the surface of the oil furnace. The shaft is fixedly installed at the output end of the motor and extends rotatably into the oil furnace. The second gear seat is fixedly installed at the tail end of the shaft and meshes with the first gear seat. The first cleaning plate and the second cleaning plate are fixedly installed on the surface of the shaft. Multiple copper wires are fixedly installed on the tail edges of the first cleaning plate and the second cleaning plate.

[0014] Preferably, the air vents are arranged in a circular array.

[0015] Preferably, the oil outlet pipe and the oil return pipe are vertically aligned.

[0016] Preferably, the water outlet pipe and the water inlet pipe are arranged in an alternating vertical structure.

[0017] Preferably, the first cleaning plate corresponds to the surface of the heat transfer oil coil, and the second cleaning plate corresponds to the surface of the copper coil.

[0018] Preferably, the dust collection box includes an inertial dust collector, a cyclone separator, and a venturi dust collector connected in sequence.

[0019] Compared with the prior art, this utility model has the following advantages:

[0020] (1) By connecting the first connection port at the end of the oil outlet pipe to the oil inlet of the heat-using equipment and connecting the second connection port at the end of the return oil pipe to the oil outlet of the heat-using equipment, an oil circuit is formed between the heat-conducting oil coil and the heat-using equipment. When the heat-conducting oil inside the heat-conducting oil coil reaches the operating temperature, the first valve and the third valve are opened. Then, by starting the heat-conducting oil pump, the heat-conducting oil inside the heat-conducting oil coil can be drawn into the heat-using equipment through the oil outlet pipe. At the same time, the heat-conducting oil drawn into the heat-using equipment can flow into the return oil pipe through the oil outlet of the heat-using equipment and return to the heat-conducting oil coil for continuous heating. This forms a closed-loop circulation system between the heat-conducting oil coil and the heat-using equipment, thereby ensuring that heat is continuously supplied to the heat-using equipment and realizing continuous heat transfer.

[0021] (2) By opening the sixth valve and connecting the fourth connection port at the end of the inlet pipe to the external water pipe, water can be drawn into the copper coil through the inlet pipe. When the high-temperature flue gas enters the waste heat recovery cylinder, the copper coil can be heated by the high-temperature flue gas. At the same time, the copper coil can transfer heat to the water inside, thus heating the water inside the copper coil. When the water is heated to a certain temperature, connect the third connection port at the end of the outlet pipe to the hot water equipment and open the third valve so that the water heated by the copper coil can be discharged into the hot water equipment. Thus, the heat in the high-temperature flue gas can be used to heat the water for use in the hot water equipment, thereby realizing the recovery and utilization of flue gas heat.

[0022] (3) The motor can drive the shaft to rotate, and the shaft can synchronously drive the second gear to rotate, and the second gear can synchronously drive the first gear to rotate, and the first gear can synchronously drive the rotating rod to rotate, and the rotating rod can synchronously drive the first cleaning plate and the second cleaning plate to rotate; the rotation of the first cleaning plate allows the copper wire on the first cleaning plate to be scraped along the surface of the heat transfer oil coil, thereby cleaning the coking adhering to the surface of the heat transfer oil coil and avoiding the coking affecting the heat transfer of the heat transfer oil coil; the rotation of the second cleaning plate allows the copper wire on the second cleaning plate to be scraped along the surface of the copper coil, thereby cleaning the coking adhering to the surface of the copper coil and avoiding the coking affecting the heat transfer of the copper coil. Attached Figure Description

[0023] Figure 1 This is a front view of the entire utility model;

[0024] Figure 2 This is a schematic diagram of the overall front sectional view of this utility model;

[0025] Figure 3 It is the whole of this utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0026] In the diagram: 1. Base; 101. Combustion chamber; 102. Air chamber; 103. Grate; 104. Air vent; 105. Air inlet pipe; 2. Screw feeder; 3. Hopper; 4. Oil furnace; 401. Heat transfer oil coil; 402. Oil outlet pipe; 403. Heat transfer oil pump; 404. First valve; 405. First connection port; 406. Lower oil pipe; 407. Second valve; 408. Return oil pipe; 409. Third valve; 410. Second connection port; 411. Oil inlet pipe; 412. ... 5. Waste heat recovery cylinder; 501. Copper coil; 502. Water outlet pipe; 503. Fifth valve; 504. Third connection port; 505. Water inlet pipe; 506. Sixth valve; 507. Fourth connection port; 6. Dust collector; 7. Scraping mechanism; 701. Mounting base; 702. Rotating rod; 703. First gear seat; 704. Motor; 705. Shaft; 706. Second gear seat; 707. First cleaning plate; 708. Second cleaning plate; 709. Copper wire. Detailed Implementation

[0027] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0028] like Figure 1-3 The biomass thermal oil heater shown includes a base 1, a screw feeder 2, a hopper 3, an oil heater 4, a waste heat recovery cylinder 5, a dust collector 6, and a scraping mechanism 7. The screw feeder 2 is fixedly installed on the left side of the base 1, the hopper 3 is fixedly installed on the top of the screw feeder 2, the oil heater 4 is fixedly installed on the top of the base 1, the waste heat recovery cylinder 5 is fixedly installed on the top of the oil heater 4, the dust collector 6 is fixedly installed on the top of the waste heat recovery cylinder 5, and the scraping mechanism 7 is fixedly installed inside the oil heater 4 and the waste heat recovery cylinder 5.

[0029] The base 1 includes a combustion chamber 101, an air chamber 102, a grate 103, air vents 104, and an air inlet pipe 105. The combustion chamber 101 is fixedly installed in the middle of the base 1. The air chamber 102 is fixedly installed between the combustion chamber 101 and the interior of the base 1. The grate 103 is fixedly installed at the bottom of the combustion chamber 101. Multiple air vents 104 are fixedly installed on the top surface of the combustion chamber 101 and are connected to the interior of the air chamber 102. Air inlet pipes 105 are fixedly installed on both sides of the surface of the base 1 and are connected to the interior of the air chamber 102.

[0030] The oil furnace 4 includes a heat transfer oil coil 401, an oil outlet pipe 402, a heat transfer oil pump 403, a first valve 404, a first connection port 405, a lower oil pipe 406, a second valve 407, a return oil pipe 408, a third valve 409, a second connection port 410, an oil inlet pipe 411, and a fourth valve 412. The heat transfer oil coil 401 is fixedly installed on the inner wall of the oil furnace 4. The oil outlet pipe 402 is fixedly installed at the bottom interface of the heat transfer oil coil 401. The heat transfer oil pump 403 is fixedly installed on the left side of the surface of the oil outlet pipe 402, and the first valve is fixedly installed on the right side of the surface of the oil outlet pipe 402. Door 404, the oil outlet pipe 402 is fixedly installed with a first connection port 405 at the tail end, the oil outlet pipe 402 is fixedly installed with a lower oil pipe 406 at the bottom middle part, the lower oil pipe 406 is fixedly installed with a second valve 407 at the middle part of the surface, the heat transfer oil coil 401 is fixedly installed with a return oil pipe 408 at the top interface, the return oil pipe 408 is fixedly installed with a third valve 409 at the right side of the surface, the return oil pipe 408 is fixedly installed with a second connection port 410 at the tail end, the return oil pipe 408 is fixedly installed with an oil inlet pipe 411 at the top middle part, and the oil inlet pipe 411 is fixedly installed with a fourth valve 412 at the middle part of the surface.

[0031] The waste heat recovery cylinder 5 includes a copper coil 501, an outlet pipe 502, a fifth valve 503, a third connection port 504, an inlet pipe 505, a sixth valve 506, and a fourth connection port 507. The copper coil 501 is fixedly installed on the inner wall of the waste heat recovery cylinder 5. The outlet pipe 502 is fixedly installed at the bottom interface of the copper coil 501. The fifth valve 503 is fixedly installed in the middle of the surface of the outlet pipe 502. The third connection port 504 is fixedly installed at the tail end of the outlet pipe 502. The inlet pipe 505 is fixedly installed at the top interface of the copper coil 501. The sixth valve 506 is fixedly installed in the middle of the surface of the inlet pipe 505. The fourth connection port 507 is fixedly installed at the tail end of the inlet pipe 505.

[0032] The scraping mechanism 7 includes a mounting base 701, a rotating rod 702, a first gear seat 703, a motor 704, a shaft 705, a second gear seat 706, a first cleaning plate 707, a second cleaning plate 708, and copper wires 709. The mounting base 701 is fixedly installed inside the top of the waste heat recovery cylinder 5. The bottom of the mounting base 701 is rotatably connected to the rotating rod 702. The first gear seat 703 is fixedly installed in the middle of the surface of the rotating rod 702. The motor 704 is fixedly installed on the surface of the oil furnace 4. The shaft 705 is fixedly installed at the output end of the motor 704 and extends rotatably into the interior of the oil furnace 4. The second gear seat 706 is fixedly installed at the tail end of the shaft 705 and meshes with the first gear seat 703. The first cleaning plate 707 and the second cleaning plate 708 are fixedly installed on the surface of the shaft 705. Multiple copper wires 709 are fixedly installed on the tail edges of the first cleaning plate 707 and the second cleaning plate 708.

[0033] In this embodiment, the air vents 104 are arranged in a circular array structure.

[0034] In practical use, air can be introduced into the air chamber 102 through the air inlet pipe 105, and the air inside the air chamber 102 can enter the combustion chamber 101 through the air hole 104 to participate in combustion, thereby making the biomass combustion more complete.

[0035] In this embodiment, the oil outlet pipe 402 and the oil return pipe 408 are vertically aligned.

[0036] In practical use, by connecting the first connection port 405 at the end of the oil outlet pipe 402 to the oil inlet of the heat-using equipment, and connecting the second connection port 410 at the end of the oil return pipe 408 to the oil outlet of the heat-using equipment, an oil circuit is formed between the heat transfer oil coil 401 and the heat-using equipment. When the heat transfer oil inside the heat transfer oil coil 401 reaches the operating temperature, the first valve 404 and the third valve 409 are opened. Then, by starting the heat transfer oil pump 403, the heat transfer oil inside the heat transfer oil coil 401 can be drawn into the heat-using equipment through the oil outlet pipe 402. At the same time, the heat transfer oil drawn into the heat-using equipment can flow into the oil return pipe 408 through the oil outlet of the heat-using equipment, and at the same time, it flows back into the heat transfer oil coil 401 for continuous heating. This forms a closed-loop circulation system between the heat transfer oil coil 401 and the heat-using equipment, thereby ensuring a continuous supply of heat to the heat-using equipment and realizing continuous heat transfer.

[0037] By closing the first valve 404 and the third valve 409, opening the second valve 407, and then starting the heat transfer oil pump 403, the heat transfer oil inside the heat transfer oil coil 401 can be drawn into the lower oil pipe 406 through the oil outlet pipe 402, allowing the heat transfer oil to be discharged from the lower oil pipe 406. By closing the third valve 409 and opening the fourth valve 412, the heat transfer oil can be discharged into the return oil pipe 408 through the oil inlet pipe 411. At the same time, the heat transfer oil flowing into the return oil pipe 408 can also flow into the heat transfer oil coil 401 in sequence, completing the discharge of heat transfer oil. Thus, the heat transfer oil can be replaced through the oil outlet pipe 402 and the oil inlet pipe 411, making it convenient to use.

[0038] In this embodiment, the water outlet pipe 502 and the water inlet pipe 505 are arranged in an alternating vertical structure.

[0039] In practical use, by opening the sixth valve 506 and connecting the fourth connection port 507 at the end of the water inlet pipe 505 to the external water pipe, water can be drawn into the copper coil 501 through the water inlet pipe 505. When the high-temperature flue gas enters the waste heat recovery cylinder 5, it can heat the copper coil 501. At the same time, the copper coil 501 can transfer heat to the water inside, thus heating the water inside the copper coil 501. After the water is heated to a certain temperature, connect the third connection port 504 at the end of the water outlet pipe 502 to the hot water equipment and open the third valve 503, so that the heated water from the copper coil 501 can be discharged into the hot water equipment. Thus, the heat in the high-temperature flue gas can be used to heat the water for use in the hot water equipment, thereby realizing the recovery and utilization of flue gas heat.

[0040] In this embodiment, the first cleaning plate 707 corresponds to the surface of the heat transfer oil coil 401, and the second cleaning plate 708 corresponds to the surface of the copper coil 501.

[0041] In practical use, the motor 704 drives the shaft 705 to rotate, and the shaft 705 synchronously drives the second gear 706 to rotate, and the second gear 706 synchronously drives the first gear 703 to rotate, and the first gear 703 synchronously drives the rotating rod 702 to rotate, and the rotating rod 702 synchronously drives the first cleaning plate 707 and the second cleaning plate 708 to rotate. The rotation of the first cleaning plate 707 allows the copper wires 709 on it to scrape along the surface of the heat transfer oil coil 401, thereby cleaning the coking adhering to the surface of the heat transfer oil coil 401 and preventing coking from affecting the heat transfer of the heat transfer oil coil 401. Similarly, the rotation of the second cleaning plate 708 allows the copper wires 709 on it to scrape along the surface of the copper coil 501, thereby cleaning the coking adhering to the surface of the copper coil 501 and preventing coking from affecting the heat transfer of the copper coil 501.

[0042] In this embodiment, the dust collection box 6 includes an inertial dust collector, a cyclone separator, and a venturi dust collector connected in sequence.

[0043] In practical use, the dust collection box 6 includes an inertial dust collector, a cyclone separator, and a venturi dust collector connected in sequence. By setting up multi-stage dust collection equipment, the solid particles and heat transfer oil in the waste flue gas are thoroughly cleaned, which facilitates the recycling and reuse of the waste flue gas.

[0044] The working principle of a biomass thermal oil heater mentioned in this utility model is as follows:

[0045] In use, biomass can be loaded into the hopper 3, and then the screw feeder 2 can be started to guide the biomass onto the grate 103 inside the combustion chamber 101. The biomass then burns on the grate 103, thereby heating the heat transfer oil inside the heat transfer oil coil 401. Air can be introduced into the air chamber 102 through the air inlet pipe 105, and the air inside the air chamber 102 can enter the combustion chamber 101 through the air hole 104 to participate in combustion, thereby making the biomass combustion more complete.

[0046] Then, by connecting the first connection port 405 at the end of the oil outlet pipe 402 to the oil inlet of the heat-using equipment, and connecting the second connection port 410 at the end of the return oil pipe 408 to the oil outlet of the heat-using equipment, an oil circuit is formed between the heat transfer oil coil 401 and the heat-using equipment. When the heat transfer oil inside the heat transfer oil coil 401 reaches the operating temperature, the first valve 404 and the third valve 409 are opened. Then, by starting the heat transfer oil pump 403, the heat transfer oil inside the heat transfer oil coil 401 can be drawn into the heat-using equipment through the oil outlet pipe 402. At the same time, the heat transfer oil drawn into the heat-using equipment can flow into the return oil pipe 408 through the oil outlet of the heat-using equipment, and at the same time flow back into the heat transfer oil coil 401 for continuous heating. Thus, a closed-loop circulation system is formed between the heat transfer oil coil 401 and the heat-using equipment, thereby ensuring that heat is continuously supplied to the heat-using equipment and realizing continuous heat transfer.

[0047] Then, by opening the sixth valve 506 and connecting the fourth connection port 507 at the end of the water inlet pipe 505 to the external water pipe, water can be drawn into the copper coil 501 through the water inlet pipe 505. When the high-temperature flue gas enters the waste heat recovery cylinder 5, the high-temperature flue gas can heat the copper coil 501. At the same time, the copper coil 501 can transfer heat to the water inside, thus heating the water inside the copper coil 501. When the water is heated to a certain temperature, connect the third connection port 504 at the end of the water outlet pipe 502 to the hot water equipment and open the third valve 503 so that the heated water from the copper coil 501 can be discharged into the hot water equipment. Thus, the heat in the high-temperature flue gas can be used to heat the water for use in the hot water equipment, thereby realizing the recovery and utilization of flue gas heat.

[0048] Then, by using the dust collection box 6, which includes an inertial dust collector, a cyclone separator, and a Venturi dust collector connected in sequence, the solid particles and heat transfer oil in the waste flue gas are thoroughly cleaned through the multi-stage dust collection equipment, making it easier to recycle and reuse the waste flue gas.

[0049] Simultaneously, the motor 704 drives the shaft 705 to rotate, and the shaft 705 synchronously drives the second gear 706 to rotate, and the second gear 706 synchronously drives the first gear 703 to rotate, and the first gear 703 synchronously drives the rotating rod 702 to rotate, and the rotating rod 702 synchronously drives the first cleaning plate 707 and the second cleaning plate 708 to rotate. The rotation of the first cleaning plate 707 allows the copper wires 709 on it to scrape along the surface of the heat transfer oil coil 401, thereby cleaning the coking adhering to the surface of the heat transfer oil coil 401 and preventing coking from affecting the heat transfer of the heat transfer oil coil 401. Similarly, the rotation of the second cleaning plate 708 allows the copper wires 709 on it to scrape along the surface of the copper coil 501, thereby cleaning the coking adhering to the surface of the copper coil 501 and preventing coking from affecting the heat transfer of the copper coil 501.

[0050] Simultaneously, by closing the first valve 404 and the third valve 409, opening the second valve 407, and then starting the heat transfer oil pump 403, the heat transfer oil inside the heat transfer oil coil 401 can be drawn into the lower oil pipe 406 through the oil outlet pipe 402, allowing the heat transfer oil to be discharged from the lower oil pipe 406. By closing the third valve 409 and opening the fourth valve 412, the heat transfer oil can be discharged into the return oil pipe 408 through the oil inlet pipe 411. At the same time, the heat transfer oil flowing into the return oil pipe 408 can also flow into the heat transfer oil coil 401 in sequence, completing the discharge of heat transfer oil. Thus, the heat transfer oil can be replaced through the oil outlet pipe 402 and the oil inlet pipe 411, making it convenient to use.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A biomass thermal oil heater, comprising a base (1), a screw feeder (2), a hopper (3), an oil heater (4), a waste heat recovery cylinder (5), a dust collector (6), and a scraping mechanism (7), characterized in that: A screw feeder (2) is fixedly installed on the left side of the base (1), a hopper (3) is fixedly installed on the top of the screw feeder (2), an oil furnace (4) is fixedly installed on the top of the base (1), a waste heat recovery cylinder (5) is fixedly installed on the top of the oil furnace (4), a dust collector (6) is fixedly installed on the top of the waste heat recovery cylinder (5), and a scraping mechanism (7) is fixedly installed inside the oil furnace (4) and the waste heat recovery cylinder (5). The base (1) includes a combustion chamber (101), a wind chamber (102), a grate (103), air holes (104), and an air inlet pipe (105). The combustion chamber (101) is fixedly installed in the middle of the base (1). The wind chamber (102) is fixedly installed between the combustion chamber (101) and the interior of the base (1). The grate (103) is fixedly installed at the bottom of the combustion chamber (101). A plurality of air holes (104) are fixedly installed on the top surface of the combustion chamber (101), and the air holes (104) are connected to the interior of the wind chamber (102). Air inlet pipes (105) are fixedly installed on both sides of the surface of the base (1), and the air inlet pipes (105) are connected to the interior of the wind chamber (102). The oil furnace (4) includes a heat transfer oil coil (401), an oil outlet pipe (402), a heat transfer oil pump (403), a first valve (404), a first connection port (405), a lower oil pipe (406), a second valve (407), a return oil pipe (408), a third valve (409), a second connection port (410), an oil inlet pipe (411), and a fourth valve (412). The heat transfer oil coil (401) is fixedly installed on the inner wall of the oil furnace (4). The oil outlet pipe (402) is fixedly installed at the bottom interface of the heat transfer oil coil (401). The heat transfer oil pump (403) is fixedly installed on the left side of the surface of the oil outlet pipe (402), and the first valve is fixedly installed on the right side of the surface of the oil outlet pipe (402). Door (404), the oil outlet pipe (402) is fixedly installed with a first connection port (405) at the tail end, the oil outlet pipe (402) is fixedly installed with a lower oil pipe (406) at the bottom of the middle part, the lower oil pipe (406) is fixedly installed with a second valve (407) at the middle part of the surface, the heat transfer oil coil (401) is fixedly installed with a return oil pipe (408) at the top interface, the return oil pipe (408) is fixedly installed with a third valve (409) at the right side of the surface, the return oil pipe (408) is fixedly installed with a second connection port (410) at the tail end, the return oil pipe (408) is fixedly installed with an oil inlet pipe (411) at the top of the middle part, and the oil inlet pipe (411) is fixedly installed with a fourth valve (412) at the middle part of the surface. The waste heat recovery cylinder (5) includes a copper coil (501), a water outlet pipe (502), a fifth valve (503), a third connection port (504), a water inlet pipe (505), a sixth valve (506), and a fourth connection port (507). The copper coil (501) is fixedly installed on the inner wall of the waste heat recovery cylinder (5). The water outlet pipe (502) is fixedly installed at the bottom interface of the copper coil (501). The fifth valve (503) is fixedly installed in the middle of the surface of the water outlet pipe (502). The third connection port (504) is fixedly installed at the tail end of the water outlet pipe (502). The water inlet pipe (505) is fixedly installed at the top interface of the copper coil (501). The sixth valve (506) is fixedly installed in the middle of the surface of the water inlet pipe (505). The fourth connection port (507) is fixedly installed at the tail end of the water inlet pipe (505). The scraping mechanism (7) includes a mounting base (701), a rotating rod (702), a first gear seat (703), a motor (704), a shaft (705), a second gear seat (706), a first cleaning plate (707), a second cleaning plate (708), and copper wire (709). The mounting base (701) is fixedly installed inside the top of the waste heat recovery cylinder (5). The bottom of the mounting base (701) is rotatably connected to the rotating rod (702). The first gear seat (703) is fixedly installed in the middle of the surface of the rotating rod (702). The surface of the oil furnace (4) is fixedly installed with... The motor (704) has a shaft (705) fixedly installed at its output end, and the shaft (705) extends rotatably into the oil furnace (4). A second gear seat (706) is fixedly installed at the tail end of the shaft (705), and the second gear seat (706) meshes with the first gear seat (703). A first cleaning plate (707) and a second cleaning plate (708) are fixedly installed on the surface of the shaft (705). Multiple copper wires (709) are fixedly installed on the tail edges of the first cleaning plate (707) and the second cleaning plate (708).

2. The biomass thermal oil heater according to claim 1, characterized in that: The air vents (104) are arranged in a circular array.

3. The biomass thermal oil heater according to claim 1, characterized in that: The oil outlet pipe (402) and the oil return pipe (408) are vertically aligned.

4. The biomass thermal oil heater according to claim 1, characterized in that: The outlet pipe (502) and the inlet pipe (505) are arranged in an alternating vertical structure.

5. A biomass thermal oil heater according to claim 1, characterized in that: The first cleaning plate (707) corresponds to the surface of the heat transfer oil coil (401), and the second cleaning plate (708) corresponds to the surface of the copper coil (501).

6. A biomass thermal oil heater according to claim 1, characterized in that: The dust collection box (6) includes an inertial dust collector, a cyclone separator, and a venturi dust collector connected in sequence.

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