A feeding device with anti-leakage function for hazardous waste incineration

Abstract

The invention discloses a feeding device with anti-leakage function for hazardous waste incineration, and relates to the technical field of feeding devices. The device comprises a frame, a silo is installed on the frame, a transmission shaft is installed in the silo, a conical disc is installed on the transmission shaft, a cam is installed on one side of the conical disc, multiple groups of conveying sleeves are installed on the outer side of the cam, multiple groups of reciprocating cylinders are installed on one side of the cam, conveying blades are installed on the multiple groups of reciprocating cylinders, telescopic plates A and telescopic plates B are installed between two adjacent groups of conveying blades, a contact plate is provided on the upper reciprocating cylinder, a coil is installed on one side of the contact plate, the contact plate and the coil are in sliding contact, the middle reciprocating cylinder is installed on the transmission shaft, and an adjusting spring A is installed on one side of the upper and lower groups of reciprocating cylinders; the cam drives the conical disc to reciprocate and vibrate while pressurizing the air, the contact plate and the coil cooperate to realize the weight detection of the material, the multiple groups of conveying blades convey the material, and the telescopic plates A and the telescopic plates B seal the material.

Description

Technical Field

[0001] The invention relates to the technical field of feeding devices, in particular to a feeding device with a leakage prevention function for hazardous waste incineration. Background Art

[0002] Activated carbon is a kind of agent that must be added in the process of hazardous waste incineration. It mainly plays the role of absorbing heavy metals and dioxins. The staff directly feeds a large amount of activated carbon into the silo, then transports it to the quantitative device through the silo, and finally feeds it into the incinerator. The traditional activated carbon feeding device uses a star-shaped ash discharge valve for continuous feeding. The feeding amount cannot be stably controlled. Too much feeding causes material waste, and too little feeding may cause heavy metals and dioxins in the flue gas to exceed the standard. Therefore, the existing feeding device does not have a weight measurement function. The staff needs to perform a weight test in advance and then transport it to the silo. During the transportation process, it is inevitable that omissions will occur, which will have an adverse effect on the combustion of the incinerator. Therefore, the existing incinerator feeding device has the following main problems: (1) There is no detection of the weight of activated carbon, resulting in too much or too little feeding, (2) The feeding device itself cannot be cleaned and needs to be cleaned manually, which is time-consuming and labor-intensive. Summary of the invention

[0003] The object of the present invention is to provide a feeding device with a leakage-proof function for hazardous waste incineration, so as to solve the problems raised in the above-mentioned background technology.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: a feeding device with anti-leakage function for hazardous waste incineration, comprising a frame, a silo is installed on the frame, a transmission shaft is installed in the silo, a conical disk is installed on the transmission shaft, a cam is installed on one side of the conical disk, multiple groups of conveying sleeves are installed on the outer side of the cam, multiple groups of reciprocating cylinders are installed on one side of the cam, multiple groups of reciprocating cylinders are installed with conveying blades, telescopic plates A and telescopic plates B are installed between two adjacent groups of conveying blades, a contact plate is provided on the upper reciprocating cylinder, a coil is installed on one side of the contact plate, the contact plate and the coil are in sliding contact, the middle reciprocating cylinder is installed on the transmission shaft, and an adjustment spring A is installed on one side of the upper and lower groups of reciprocating cylinders;

[0005] The cam drives the conical disk to vibrate back and forth while pressurizing the air. The contact plate and the coil cooperate to detect the weight of the material. The multiple groups of conveying blades convey the material. The telescopic plates A and B seal the material. The adjusting spring A adjusts the positions of the upper and lower groups of conveying blades.

[0006] The transmission shaft is rotatably mounted on the silo through a bearing, the interior of the transmission shaft is hollow, an injection chamber is arranged at the lower side of the transmission shaft, the middle part of the conical disk is slidably mounted on the transmission shaft through a spline, a return spring is connected between the conical disk and the silo, a disc plate is arranged at the lower side of the conical disk, a plurality of feed ports are arranged on the disc plate, the plurality of feed ports are respectively connected to a plurality of groups of conveying sleeves, one side of the conveying sleeve is through-connected to the silo, the conveying sleeve is a telescopic structure, a first control valve and a first sensor are installed in the conveying sleeve, and the first control valve and the first sensor are electrically connected to a control system;

[0007] The conical disk and the cam are both provided with a plurality of grooves and protrusions on one side opposite to the cam, and the cam is mounted on the transmission shaft.

[0008] The upper and lower groups of reciprocating cylinders are slidably mounted on the transmission shaft through splines, and the coil is mounted on the transmission shaft near the upper reciprocating cylinder. The contact plate is made of metal material, and the contact plate contacts the outer side of the coil. One end of the contact plate and the coil are both electrically connected to the control system.

[0009] Sliding grooves are provided on the transmission shafts near the upper and lower groups of reciprocating cylinders. The reciprocating cylinder on the upper side passes through the sliding groove and is connected to the upper end of the upper adjusting spring A, and the lower end of the upper adjusting spring A is connected to the transmission shaft. The reciprocating cylinder on the lower side passes through the sliding groove and is connected to the lower end of the lower adjusting spring A, and the upper end of the lower adjusting spring A is connected to the transmission shaft, and both ends of the adjusting spring A are electrically connected to the control system.

[0010] A shielding plate is installed between the reciprocating cylinder and the transmission shaft near the sliding groove, and the shielding plate is a telescopic structure, and multiple groups of shielding plates are provided;

[0011] The telescopic plate B is arranged on the transmission shaft between two adjacent groups of conveying blades, and the telescopic plate A is slidably installed in the telescopic plate B. An adjustment spring B is connected between the telescopic plates A and B, and both ends of the adjustment spring B are electrically connected to the control system.

[0012] A pressurized chamber is formed between the outer wall of the transmission shaft, the inner wall of the silo and the conical disk, an air inlet is provided on the silo near the pressurized chamber, the air inlet is connected to the outside air through a pipeline, an air outlet connected to the pressurized chamber is provided on the transmission shaft, and a pressure gauge is installed on the inner wall of the silo near the pressurized chamber;

[0013] The air outlet is connected to the injection chamber through a pipeline passing through the interior of the transmission shaft. The transmission shaft is provided with a plurality of injection holes connected to the injection chamber. One-way valves are installed in the air inlet, the air outlet and the injection holes. The one-way valve is electrically connected to the control system.

[0014] The invention comprises a driving mechanism, wherein the driving mechanism is installed on a frame and connected to a transmission shaft. The driving mechanism comprises a driving motor, a transmission belt and a plurality of gears, wherein the transmission belt meshes with a plurality of gears, and the gears are respectively installed on the transmission shaft and an output shaft of the driving motor.

[0015] First, put the material into the silo from the upper side. The material is activated carbon. The material contacts the conical disk. The output shaft of the driving motor drives the gear to rotate. The gear drives another gear to rotate through the transmission belt. The other gear drives the transmission shaft to rotate. The transmission shaft drives the conical disk and the cam to rotate. During the rotation of the cam, when the protrusion on the cam contacts the protrusion on the lower side of the conical disk, the cam pushes the conical disk to move upward, and the conical disk drives the material to move upward a certain distance. Since the conical disk slides on the silo and a return spring is connected between the conical disk and the silo, when the conical disk moves upward, the conical disk stretches the return spring. After that, the cam continues to rotate. When the protrusion on the cam and the groove on the conical disk are relative, the return spring is released. Under the combined action of the dead weight of the material and the pulling force of the return spring, the conical disk moves downward, and the material on the conical disk moves downward. Since a number of protrusions and grooves are provided on the conical disk and the cam, when the cam rotates, the conical disk moves up and down frequently, causing the material to vibrate.

[0016] As the conical disk moves upward, the volume of the pressurized chamber increases, and external air enters the pressurized chamber through the air inlet and the one-way valve. Afterwards, the conical disk moves downward, the volume of the pressurized chamber decreases, and the air pressure in the pressurized chamber increases. The pressurized air is transported to the injection chamber through the air outlet, the one-way valve and the pipeline, and is ejected from the injection hole on the injection chamber.

[0017] After the material is vibrated, it enters the conveying sleeve. The first sensor feeds back the data to the control system, the first control valve opens, the drive motor stops working, the transmission shaft does not rotate, the material no longer vibrates, and falls through the conveying sleeve only by its own weight. The material falls on the upper conveying blade. Since the upper conveying blade is slidably mounted on the transmission shaft through a spline, and an adjusting spring A is connected between the conveying blade and the transmission shaft, the material presses the conveying blade down by its own weight, and the conveying blade compresses the adjusting spring A. The telescopic plate A contacts the conveying blade, and the telescopic plate A seals the lower side of the conveying blade to prevent the material from being conveyed downward from the upper conveying blade.

[0018] When the material falls from the conveying sleeve to the upper conveying blade, the control system connects the contact plate and one end of the coil to the circuit according to the data of the first sensor. When the upper conveying blade is pressed down by the material, the conveying blade drives the upper reciprocating cylinder to move downward, and the contact plate on the reciprocating cylinder moves downward synchronously. The contact position between the contact plate and the coil moves downward, and the effective number of turns of the coil changes. Since the contact plate is in contact with the coil, the current enters from the contact plate, flows through the effective number of turns of the coil, and then flows out from one end of the coil. The effective number of turns refers to the number of turns between the contact plate and one end of the coil. When the contact plate moves downward under the influence of the dead weight of the material, the effective number of turns of the coil connected to the circuit changes, and the current flowing through the coil changes. The control system detects the current size and then obtains the weight of the material on the conveying blade. When the weight detected by the control system is equal to the set weight, the set weight is set in advance by the staff through the control system, the first control valve is closed, and the material cannot fall through the conveying sleeve. When the weight detected by the control system is less than the set weight, the first control valve is not closed, and it is closed after the set weight is met.

[0019] The dead weight of the material will press the upper conveying blade down to the upper side of the telescopic plate B or the lower side of the telescopic plate A at most.

[0020] When the weight detected by the control system is equal to the set weight, the material that meets the set weight will be transported, and the control system will energize the adjusting spring B between the telescopic plate A and the telescopic plate B, and each turn of the adjusting spring B will generate a mutually attractive magnetic field, which compresses the adjusting spring B, and the adjusting spring B pulls the telescopic plate A inward. The telescopic plate A no longer closes the material on the upper conveying blade. The telescopic plate A moves inward to the inside of the telescopic plate B and is flush with one side of the telescopic plate A. Since the telescopic plate A and the telescopic plate B are arranged between two adjacent groups of conveying blades, the telescopic plates A on both sides move into the telescopic plate B.

[0021] When the telescopic plate A and the telescopic plate B are flush, the control system energizes the upper adjusting spring A and the lower adjusting spring A. After the adjusting spring A is energized, a magnetic field of mutual attraction is generated between each turn of the adjusting spring A. The magnetic field force of the adjusting spring A is greater than its own elastic force, and the adjusting spring A shortens. Since the lower end of the upper adjusting spring A is connected to the transmission shaft, and the upper end of the upper adjusting spring A is connected to the upper reciprocating cylinder, the upper adjusting spring A pulls the upper reciprocating cylinder to move downward, and the upper reciprocating cylinder pulls the upper conveying blade to move downward, so that the lower side of the upper conveying blade contacts one side of the telescopic plate B.

[0022] After the lower adjusting spring A is energized, since the upper end of the lower adjusting spring A is connected to the transmission shaft and the lower end of the lower adjusting spring A is connected to the lower reciprocating cylinder, the adjusting spring A pulls the lower reciprocating cylinder to move upward, and the lower reciprocating cylinder drives the lower conveying blade to move upward, so that the upper side of the lower conveying blade contacts one side of the telescopic plate B.

[0023] When the telescopic plates A on both sides are retracted into the telescopic plate B, a conveying chamber is formed between the upper conveying blades, the middle conveying blades, the lower conveying blades and the telescopic plate B, and the drive motor starts to drive the transmission shaft to rotate, and the transmission shaft drives the upper conveying blades, the middle conveying blades and the lower conveying blades to rotate. The materials are transported to the lower side of the silo through the upper conveying blades, the middle conveying blades and the lower conveying blades, and the pressurized air blows the materials downward to prevent the materials from accumulating in the silo. The materials enter the conveying pipeline through the lower side of the silo, and the Roots blower blows the materials to the incinerator through the conveying pipeline.

[0024] After the material enters the conveying pipeline, the control system cuts off the power to the adjusting springs B on both sides, and the adjusting spring A on the upper side is also cut off. Under the action of their own elastic force, the distance between the two ends of the adjusting springs B and A gradually increases, and the upper adjusting spring B pushes the upper telescopic plate A to move upward, and the lower adjusting spring B pushes the lower telescopic plate A to move downward. The lower telescopic plate A recloses the conveying blades, so that the material in the conveying pipeline cannot flow back into the silo, preventing material leakage.

[0025] It includes an incinerator, multiple groups of conveying blades form a sliding seal with the inner wall of the silo, a conveying pipeline is installed under the silo, the conveying pipeline is installed on a frame, a Roots blower is installed on one side of the conveying pipeline, the middle part of the conveying pipeline is connected to the bottom of the silo, the other side of the conveying pipeline is connected to the incinerator, multiple groups of gate valves are installed on the conveying pipeline, and the gate valves are electrically connected to the control system.

[0026] It includes a vacuum pump, the telescopic plate A and the telescopic plate B are both telescopic structures, the conveying blades are spiral-shaped, the vacuum pump is installed on the frame, and the vacuum pump is connected to the pressurized chamber through a pipeline passing through the silo.

[0027] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0028] 1. Activated carbon weight detection to ensure that the weight meets the requirements. The material falls from the conveying sleeve to the upper conveying blade, and the contact plate and one end of the coil are connected to the circuit. When the upper conveying blade is pressed down by the material, the conveying blade drives the upper reciprocating cylinder to move downward, and the contact plate on the reciprocating cylinder moves downward synchronously. The contact position between the contact plate and the coil moves downward, and the effective number of turns of the coil changes. Since the contact plate is in contact with the coil, the current enters from the contact plate, flows through the effective number of turns of the coil, and then flows out from one end of the coil. The effective number of turns refers to the number of turns between the contact plate and one end of the coil. When the contact plate moves downward under the influence of the material's own weight, the effective number of turns of the coil connected to the circuit changes, and the current flowing through the coil changes. The control system detects the size of the current and then obtains the weight of the material on the conveying blade to prevent excessive activated carbon from causing waste, and too little activated carbon from exceeding the standard for heavy metals and dioxins in the flue gas.

[0029] 2. The internal self-cleaning process of the silo saves time and effort. The control system will continuously energize and de-energize the regulating spring A. When energized, the regulating spring A pulls the conveying blade to move. When de-energized, the regulating spring A pushes the conveying blade to move in the opposite direction, so that the conveying blades on both sides continue to vibrate up and down. The material and other impurities on the conveying blades continue to move downward from the conveying chamber and fall from the lower side of the silo into the conveying pipe, causing the conveying blades to vibrate up and down and collide with the transmission shaft, realizing the self-cleaning process of the conveying blades, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0031] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0032] Figure 2 yes Figure 1 Schematic diagram of the structure inside the middle silo;

[0033] Figure 3 yes Figure 2 A partial enlarged view of the middle A area;

[0034] Figure 4 yes Figure 2 A partial enlarged view of the middle B area;

[0035] Figure 5 yes Figure 2 A three-dimensional diagram of the lower structure of the middle silo (when the material has not fallen on the conveying blades);

[0036] Figure 6 yes Figure 5A three-dimensional image of the material falling on the upper conveying blade after the upper shielding plate is removed (the state of the material falling on the upper conveying blade);

[0037] Figure 7 Schematic diagram of the installation structure of telescopic plate A, telescopic plate B and adjustable spring B on the transmission shaft;

[0038] Figure 8 yes Figure 6 A three-dimensional diagram of the material being transported by the conveying blades (the state of the material when being transported);

[0039] Fig. 9 yes Figure 8 A three-dimensional diagram of the machine entering a leak-proof state after the material is transported.

[0040] In the figure: 1. Roots blower; 11. frame; 12. silo; 13. conveying pipeline; 2. driving mechanism; 21. transmission shaft; 22. material; 23. conical disk; 24. cam; 25. conveying sleeve; 251. first control valve; 26. return spring; 27. injection hole; 28. air inlet; 281. air outlet; 3. conveying blade; 31. reciprocating cylinder; 32. adjusting spring A; 33. baffle plate; 34. telescopic plate A; 341. telescopic plate B; 35. adjusting spring B; 36. coil. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] See also Figure 1-Figure 9The present invention provides a technical solution: a feeding device with anti-leakage function for hazardous waste incineration, including a frame 11, a driving mechanism 2, an incinerator and a vacuum pump, a silo 12 is installed on the frame 11, a transmission shaft 21 is installed in the silo 12, a conical disc 23 is installed on the transmission shaft 21, a cam 24 is installed on one side of the conical disc 23, multiple groups of conveying sleeves 25 are installed on the outer side of the cam 24, multiple groups of reciprocating cylinders 31 are installed on one side of the cam 24, conveying blades 3 are installed on the multiple groups of reciprocating cylinders 31, and telescopic plates A34 and B341 are installed between two adjacent groups of conveying blades 3. A contact plate is provided on the upper reciprocating cylinder 31, and a coil 36 is installed on one side of the contact plate. The contact plate and the coil 36 are in sliding contact. The middle reciprocating cylinder 31 is installed on the transmission shaft 21, and an adjusting spring A32 is installed on one side of the upper and lower groups of reciprocating cylinders 31; the cam 24 drives the conical disk 23 to vibrate reciprocatingly while pressurizing the air, and the contact plate and the coil 36 cooperate to realize the weight detection of the material 22, and multiple groups of conveying blades 3 convey the material 22, and the telescopic plate A34 and the telescopic plate B341 close the material 22, and the adjusting spring A32 adjusts the position of the upper and lower groups of conveying blades 3.

[0043] The transmission shaft 21 is rotatably mounted on the silo 12 through a bearing. The transmission shaft 21 is hollow inside. An injection chamber is arranged at the lower side of the transmission shaft 21. The middle part of the conical disc 23 is slidably mounted on the transmission shaft 21 through a spline. A return spring 26 is connected between the conical disc 23 and the silo 12. A disc plate is arranged at the lower side of the conical disc 23. A plurality of feed ports are arranged on the disc plate. The plurality of feed ports are respectively connected to a plurality of groups of conveying sleeves 25. One side of the conveying sleeve 25 is connected through the silo 12. The conveying sleeve 25 is a telescopic structure. A conveying sleeve 25 is installed inside. The first control valve 251 and the first sensor are electrically connected to the control system; the conical disk 23 and the cam 24 are provided with a plurality of grooves and protrusions on the opposite side, the cam 24 is mounted on the transmission shaft 21, the upper and lower sets of reciprocating cylinders 31 are slidably mounted on the transmission shaft 21 through splines, the coil 36 is mounted on the transmission shaft 21 near the upper reciprocating cylinder 31, the contact plate is made of metal material, the contact plate contacts the outer side of the coil 36, and one end of the contact plate and the coil 36 are electrically connected to the control system;

[0044] Sliding grooves are provided on the transmission shaft 21 near the upper and lower groups of reciprocating cylinders 31. The upper reciprocating cylinder 31 passes through the sliding groove and is connected to the upper end of the upper adjusting spring A32. The lower end of the upper adjusting spring A32 is connected to the transmission shaft 21. The lower reciprocating cylinder 31 passes through the sliding groove and is connected to the lower end of the lower adjusting spring A32. The upper end of the lower adjusting spring A32 is connected to the transmission shaft 21. Both ends of the adjusting spring A32 are electrically connected to the control system. A baffle plate 33 is installed between the reciprocating cylinder 31 near the sliding groove and the transmission shaft 21. The baffle plate 33 is a telescopic structure, and multiple groups of baffle plates 33 are provided. The telescopic plate B341 is arranged on the transmission shaft 21 between the two adjacent groups of conveying blades 3. A telescopic plate A34 is slidably installed in the telescopic plate B341. An adjusting spring B35 is connected between the telescopic plate A34 and the telescopic plate B341. Both ends of the adjusting spring B35 are electrically connected to the control system. The telescopic plate A34 and the telescopic plate B341 are both telescopic structures.

[0045] A pressurized chamber is formed between the outer wall of the transmission shaft 21, the inner wall of the silo 12 and the conical disk 23. The vacuum pump passes through the silo 12 through a pipeline and is connected to the pressurized chamber. An air inlet 28 is provided on the silo 12 near the pressurized chamber. The air inlet 28 is connected to the external air through a pipeline. An air outlet 281 connected to the pressurized chamber is provided on the transmission shaft 21. A pressure gauge is installed on the inner wall of the silo 12 near the pressurized chamber. The air outlet 281 passes through the interior of the transmission shaft 21 through a pipeline and is connected to the injection chamber. A plurality of injection holes 27 connected to the injection chamber are provided on the transmission shaft 21. One-way valves are installed in the air inlet 28, the air outlet 281 and the injection hole 27, and the one-way valve is electrically connected to the control system.

[0046] The driving mechanism 2 is installed on the frame 11 and connected to the transmission shaft 21. The driving mechanism 2 includes a driving motor, a transmission belt and multiple gears. The transmission belt is meshed with the multiple gears, and the gears are respectively installed on the transmission shaft 21 and the output shaft of the driving motor.

[0047] A plurality of conveying blades 3 form a sliding seal with the inner wall of the silo 12, the conveying blades 3 are spiral-shaped, the vacuum pump is installed on the frame 11, a conveying pipe 13 is installed below the silo 12, the conveying pipe 13 is installed on the frame 11, a Roots blower 1 is installed on one side of the conveying pipe 13, the middle part of the conveying pipe 13 is connected to the bottom of the silo 12, the other side of the conveying pipe 13 is connected to the incinerator, and a plurality of gate valves are installed on the conveying pipe 13, and the gate valves are electrically connected to the control system.

[0048] The working principle of the present invention is as follows: firstly, the material 22 is put in from the upper side of the silo 12, the material 22 is activated carbon, the material 22 contacts the conical disk 23, the output shaft of the driving motor drives the gear to rotate, the gear drives another gear to rotate through the transmission belt, the other gear drives the transmission shaft 21 to rotate, the transmission shaft 21 drives the conical disk 23 and the cam 24 to rotate, during the rotation of the cam 24, when the protrusion on the cam 24 contacts the protrusion on the lower side of the conical disk 23, the cam 24 pushes the conical disk 23 to move upward, the conical disk 23 drives the material 22 to move upward a certain distance, and since the conical disk 23 slides on the silo 12, A return spring 26 is connected between the conical disk 23 and the silo 12, so when the conical disk 23 moves upward, the conical disk 23 stretches the return spring 26, and then the cam 24 continues to rotate. When the protrusion on the cam 24 and the groove on the conical disk 23 are relative, the return spring 26 is released. Under the combined action of the dead weight of the material 22 and the pulling force of the return spring 26, the conical disk 23 moves downward, and the material 22 on the conical disk 23 moves downward. Since a number of protrusions and grooves are provided on the conical disk 23 and the cam 24, when the cam 24 rotates, the conical disk 23 frequently moves up and down to vibrate the material 22.

[0049] When the conical disk 23 moves upward, the volume of the pressurized chamber increases, and external air enters the pressurized chamber through the air inlet 28 and the one-way valve. After that, the conical disk 23 moves downward, the volume of the pressurized chamber decreases, and the air pressure in the pressurized chamber increases. The pressurized air is transported to the injection chamber through the air outlet 281, the one-way valve and the pipeline, and is ejected from the injection hole 27 on the injection chamber.

[0050] After the material 22 is vibrated, it enters the conveying sleeve 25. The first sensor in the conveying sleeve 25 detects the displacement of the material 22. The first sensor feeds back the displacement data to the control system. After the control system processes it, the control system controls the first control valve 251 to open and the drive motor to stop working. The transmission shaft 21 does not rotate, and the material 22 no longer vibrates. It falls through the conveying sleeve 25 only by its own weight. The material 22 falls on the upper conveying blade 3. Since the upper conveying blade 3 is slidably mounted on the transmission shaft 21 through a spline, and an adjusting spring A32 is connected between the conveying blade 3 and the transmission shaft 21, the material 22 presses the conveying blade 3 down by its own weight. The conveying blade 3 compresses the adjusting spring A32, and the telescopic plate A34 contacts the conveying blade 3. The telescopic plate A34 seals the lower side of the conveying blade 3 to prevent the material 22 from being conveyed downward from the upper conveying blade 3.

[0051] When the material 22 falls from the conveying sleeve 25 onto the upper conveying blade 3, the control system connects the contact plate and one end of the coil 36 to the circuit according to the displacement data of the first sensor. When the upper conveying blade 3 is pressed down by the material 22, the conveying blade 3 drives the upper reciprocating cylinder 31 to move downward, and the contact plate on the reciprocating cylinder 31 moves downward synchronously. The contact position between the contact plate and the coil 36 moves downward, and the effective number of turns of the coil 36 changes. Since the contact plate is in contact with the coil 36, the current enters from the contact plate, flows through the effective number of turns of the coil 36, and then flows out from one end of the coil 36. The effective number of turns refers to the number of turns between the contact plate and one end of the coil 36. When the contact plate is subjected to the weight of the material 22, the current flows into the contact plate, flows through the effective number of turns of the coil 36, and then flows out from one end of the coil 36. When the influence moves downward, the effective number of turns of the coil 36 connected to the circuit changes, and the current flowing through the coil 36 changes. The control system detects the magnitude of the current and obtains the weight of the material 22 on the conveying blade 3. When the weight detected by the control system is equal to the set weight, the set weight is set in advance by the staff through the control system, and the first control valve 251 is closed, and the material 22 cannot fall through the conveying sleeve 25. When the weight detected by the control system is less than the set weight, the first control valve 251 is not closed, and is closed after the set weight is met. The self-weight of the material 22 presses the upper conveying blade 3 down to the upper side of the telescopic plate B341 or the lower side of the telescopic plate A34.

[0052] When the weight detected by the control system is equal to the set weight, the material 22 that meets the set weight will be transported, and the control system will energize the adjusting spring B35 between the telescopic plate A34 and the telescopic plate B341, and each turn of the adjusting spring B35 will generate a mutually attractive magnetic field, which compresses the adjusting spring B35, and the adjusting spring B35 pulls the telescopic plate A34 inward. The telescopic plate A34 no longer closes the material 22 on the upper conveying blade 3, and the telescopic plate A34 moves inward to the inside of the telescopic plate B341 and is flush with one side of the telescopic plate A34. Since the telescopic plate A34 and the telescopic plate B341 are arranged between two adjacent groups of conveying blades 3, the telescopic plates A34 on both sides move into the telescopic plate B341.

[0053] When the telescopic plate A34 and the telescopic plate B341 are flush, the control system energizes the upper adjusting spring A32 and the lower adjusting spring A32. After the adjusting spring A32 is energized, a magnetic field of mutual attraction is generated between each turn of the adjusting spring A32. The magnetic field force of the adjusting spring A32 is greater than its own elastic force, and the adjusting spring A32 is shortened. Since the lower end of the upper adjusting spring A32 is connected to the transmission shaft 21, and the upper end of the upper adjusting spring A32 is connected to the upper reciprocating cylinder 31, the upper adjusting spring A32 pulls the upper reciprocating cylinder 31 to move downward, and the upper reciprocating cylinder 31 pulls the upper conveying blade 3 to move downward, so that the lower side of the upper conveying blade 3 contacts one side of the telescopic plate B341.

[0054] After the lower adjusting spring A32 is energized, since the upper end of the lower adjusting spring A32 is connected to the transmission shaft 21, and the lower end of the lower adjusting spring A32 is connected to the lower reciprocating cylinder 31, the adjusting spring A32 pulls the lower reciprocating cylinder 31 to move upward, and the lower reciprocating cylinder 31 drives the lower conveying blade 3 to move upward, so that the upper side of the lower conveying blade 3 contacts one side of the telescopic plate B341.

[0055] When the telescopic plates A34 on both sides are retracted to the inside of the telescopic plate B341, a conveying chamber is formed between the upper conveying blades 3, the middle conveying blades 3, the lower conveying blades 3 and the telescopic plate B341, and the driving motor works. The driving motor drives the transmission shaft 21 to rotate, and the transmission shaft 21 drives the upper conveying blades 3, the middle conveying blades 3 and the lower conveying blades 3 to rotate. The material 22 is conveyed to the lower side of the silo 12 through the upper conveying blades 3, the middle conveying blades 3 and the lower conveying blades 3, and the pressurized air blows the material 22 downward to prevent the material 22 from accumulating in the silo 12. The material 22 enters the conveying pipe 13 through the lower side of the silo 12, and the Roots blower 1 blows the material 22 to the incinerator through the conveying pipe 13. The pressure gauge in the pressurized chamber detects the pressure of the pressurized chamber in real time and feeds back the data to the control system. When the pressure detected by the pressure gauge is low, the vacuum pump pressurizes the external air and transmits it to the pressurized chamber through the pipeline to ensure the stable operation of the pressurized chamber.

[0056] When the upper and lower groups of conveying blades 3 move, the shielding plate 33 between the reciprocating cylinder 31 and the transmission shaft 21 shrinks and stretches following the movement of the conveying blades 3 on both sides, sealing and shielding the material 22 to prevent the material 22 from entering the transmission shaft 21 from the sliding groove.

[0057] After the material 22 enters the conveying pipe 13, the control system cuts off the power to the adjusting springs B35 on both sides, and the adjusting spring A32 on the upper side is also cut off. Under the action of their own elastic force, the distance between the two ends of the adjusting springs B35 and A32 gradually increases, and the upper adjusting spring B35 pushes the upper telescopic plate A34 to move upward, and the lower adjusting spring B35 pushes the lower telescopic plate A34 to move downward. The lower telescopic plate A34 closes the conveying blade 3 again, so that the material 22 in the conveying pipe 13 cannot flow back into the silo 12, thereby preventing the leakage of the material 22.

[0058] During long-term use, the conveying blades 3 will inevitably be attached with materials 22 or impurities on the surface, and need to be cleaned. The plug valve in the conveying pipe 13 is closed to seal the conveying pipe 13, and the control system energizes the adjusting spring B35 to retract the telescopic plates A34 on both sides into the telescopic plates B341. After that, the control system continuously energizes and de-energizes the adjusting spring A32. When energized, the adjusting spring A32 pulls the conveying blades 3 to move, and when de-energized, the adjusting spring A32 pushes the conveying blades 3 to move in the opposite direction, so that the conveying blades 3 on both sides continue to vibrate up and down, and the materials 22 and other impurities on the conveying blades 3 continue to move downward from the conveying chamber and fall into the conveying pipe 13 from the lower side of the silo 12. After that, the adjusting spring B35 is de-energized again, and the telescopic plates A34 on both sides re-seal the conveying blades 3 on both sides, the plug valve on the conveying pipe 13 is opened, and the Roots blower 1 blows the material 22 to the incinerator through the conveying pipe 13.

[0059] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0060] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A feeding device with anti-leakage function for hazardous waste incineration, characterized in that: The machine comprises a frame (11), a material bin (12) being mounted on the frame (11), a transmission shaft (21) being mounted in the material bin (12), a conical disc (23) being mounted on the transmission shaft (21), a cam (24) being mounted on one side of the conical disc (23), a plurality of groups of conveying sleeves (25) being mounted on the outer side of the cam (24), a plurality of groups of reciprocating cylinders (31) being mounted on one side of the cam (24), a conveying blade (3) being mounted on each of the plurality of groups of reciprocating cylinders (31), a telescopic plate A (34) and a telescopic plate B (341) being mounted between two adjacent groups of the conveying blades (3), a contact plate being mounted on the upper reciprocating cylinder (31), a coil (36) being mounted on one side of the contact plate, the contact plate and the coil (36) being in sliding contact, a middle reciprocating cylinder (31) being mounted on the transmission shaft (21), and an adjusting spring A (32) being mounted on one side of the upper and lower groups of the reciprocating cylinders (31); The cam (24) drives the conical disk (23) to vibrate back and forth while pressurizing the air. The contact plate and the coil (36) cooperate to detect the weight of the material (22). The plurality of groups of conveying blades (3) convey the material (22). The telescopic plate A (34) and the telescopic plate B (341) seal the material (22). The adjusting spring A (32) adjusts the positions of the upper and lower groups of conveying blades (3). The transmission shaft (21) is rotatably mounted on the silo (12) via a bearing. The transmission shaft (21) is hollow inside. An injection chamber is provided at the lower side of the transmission shaft (21). The middle part of the conical disc (23) is slidably mounted on the transmission shaft (21) via a spline. A return spring (26) is connected between the conical disc (23) and the silo (12). A disc plate is provided at the lower side of the conical disc (23). A plurality of feed ports are provided on the disc plate. The plurality of feed ports are respectively connected to a plurality of groups of conveying sleeves (25). One side of the conveying sleeve (25) is connected to the silo (12). The conveying sleeve (25) is a telescopic structure. A first control valve (251) and a first sensor are installed in the conveying sleeve (25). The first control valve (251) and the first sensor are electrically connected to a control system. A plurality of grooves and protrusions are provided on opposite sides of the conical disk (23) and the cam (24), and the cam (24) is mounted on the transmission shaft (21); The upper and lower groups of reciprocating cylinders (31) are slidably mounted on the transmission shaft (21) via splines, the coil (36) is mounted on the transmission shaft (21) near the inner side of the upper reciprocating cylinder (31), the contact plate is made of metal material, the contact plate is in contact with the outer side of the coil (36), and one end of the contact plate and the coil (36) are both electrically connected to the control system; The transmission shaft (21) near the upper and lower groups of reciprocating cylinders (31) is provided with a sliding groove, the upper reciprocating cylinder (31) passes through the sliding groove and is connected to the upper end of the upper adjusting spring A (32), the lower end of the upper adjusting spring A (32) is connected to the transmission shaft (21), the lower reciprocating cylinder (31) passes through the sliding groove and is connected to the lower end of the lower adjusting spring A (32), the upper end of the lower adjusting spring A (32) is connected to the transmission shaft (21), and both ends of the adjusting spring A (32) are electrically connected to the control system; A shielding plate (33) is installed between the reciprocating cylinder (31) and the transmission shaft (21) near the sliding groove, the shielding plate (33) being a telescopic structure, and a plurality of groups of the shielding plates (33) are provided; The telescopic plate B (341) is arranged on the transmission shaft (21) between two adjacent groups of conveying blades (3), a telescopic plate A (34) is slidably mounted inside the telescopic plate B (341), an adjustment spring B (35) is connected between the telescopic plate A (34) and the telescopic plate B (341), and both ends of the adjustment spring B (35) are electrically connected to a control system; A pressurized chamber is formed between the outer wall of the transmission shaft (21), the inner wall of the silo (12) and the conical disk (23); an air inlet (28) is provided on the silo (12) near the pressurized chamber, the air inlet (28) is connected to the outside air through a pipeline; an air outlet (281) connected to the pressurized chamber is provided on the transmission shaft (21); and a pressure gauge is installed on the inner wall of the silo (12) near the pressurized chamber; The air outlet (281) is connected to the injection chamber through a pipeline passing through the interior of the transmission shaft (21); a plurality of injection holes (27) connected to the injection chamber are provided on the transmission shaft (21); and one-way valves are installed in the air inlet (28), the air outlet (281) and the injection holes (27); the one-way valves are electrically connected to a control system.

2. A feeding device with anti-leakage function for hazardous waste incineration according to claim 1, comprising a driving mechanism (2), characterized in that: The drive mechanism (2) is mounted on the frame (11), the drive mechanism (2) is connected to the transmission shaft (21), the drive mechanism (2) comprises a drive motor, a transmission belt and a plurality of gears, the transmission belt is meshed with the plurality of gears, and the gears are respectively mounted on the transmission shaft (21) and the output shaft of the drive motor.

3. A feeding device with anti-leakage function for hazardous waste incineration according to claim 2, comprising an incinerator, characterized in that: A plurality of groups of the conveying blades (3) form a sliding seal with the inner wall of the silo (12); a conveying pipe (13) is installed below the silo (12); the conveying pipe (13) is installed on the frame (11); a Roots blower (1) is installed on one side of the conveying pipe (13); the middle of the conveying pipe (13) is connected to the bottom of the silo (12); the other side of the conveying pipe (13) is connected to the incinerator; a plurality of groups of gate valves are installed on the conveying pipe (13); the gate valves are electrically connected to a control system.

4. The feeding device with anti-leakage function for hazardous waste incineration according to claim 3 comprises a vacuum pump, characterized in that: The telescopic plate A (34) and the telescopic plate B (341) are both telescopic structures, the conveying blade (3) is spiral-shaped, the vacuum pump is mounted on the frame (11), and the vacuum pump is connected to the pressurized chamber through a pipeline passing through the silo (12).

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