WO2009046604A1

WO2009046604A1 - Feeding device for solid fuel

Info

Publication number: WO2009046604A1
Application number: PCT/CN2007/070868
Authority: WO
Inventors: Zhanbin Che
Original assignee: Zhanbin Che
Priority date: 2007-10-10
Filing date: 2007-10-10
Publication date: 2009-04-16

Abstract

A feeding device for solid fuel includes a storing container (1), a passage of the fuel (4) and a feeding passage (3). A feeding mechanism (5) is provided in the passage of the fuel (4), said feeding mechanism (5) being set that the passage of the fuel (4) is opened to let the fuel in the storing container (1) enter into the feeding passage (3) when needed to feed, and the passage of the fuel (4) is closed when stopping the feeding. The feeding device can feed by the feeding mechanism when needed, man does not need to open the hearth manually to feed, and it make the operation easy and safe.

Description

Instruction manual solid fuel feeding device

#细 or

[I] The present invention relates to a device for feeding a solid fuel combustion furnace, and more particularly to a solid fuel charging device.

[2] At present, solid fuel burners generally use manual feeding. The fuel in the furnace is insufficient. The operator opens the feed port on the furnace and manually adds the solid fuel to the furnace several times. This traditional feeding method is not only cumbersome to operate, but also laborious, and the harmful gas generated by combustion in the furnace is also likely to leak from the feeding port during the feeding, affecting the personal safety of the operator, and the amount of solid fuel added each time is not Accurate, affecting the combustion efficiency of the furnace.

[3] Therefore, it is necessary to provide a solid fuel charging device to overcome the deficiencies of the existing conventional manual feeding methods.

[4] It is an object of the present invention to provide a solid fuel charging device which is fed by a feeding mechanism after being fed, and which is simple and safe to operate.

[5] It is also an object of the present invention to provide a solid fuel charging device which is capable of automatically detecting the amount of fuel stored in the feed passage to make the feeding accurate.

[6] The above object of the present invention can be achieved by the following technical solution, a solid fuel feeding device, the feeding device comprising:

[7] storage bins;

[8] a fuel passage having a fuel inlet and a fuel outlet, wherein the fuel inlet is connected to the storage tank;

[9] a feeding passage connected to a fuel outlet position of the fuel passage, and a feeding port is formed below the feeding passage;

[10] a feeding mechanism disposed on the fuel passage;

[II] wherein the feeding mechanism is arranged to open the fuel passage when the feeding hopper is required, so that the fuel in the storage tank can enter the feeding passage; when the feeding passage stops feeding, the fuel passage is closed. [12] In a preferred embodiment of the present invention, the feeding device may further include:

[13] a first sensor disposed in the feed passage for detecting a feeding position of the fuel;

[14] a second sensor disposed in the feed channel for detecting a fuel full position;

[15] wherein the feeding mechanism opens the fuel passage when the first sensor detects that the fuel is in the charging position ;; and closes the fuel passage when the second sensor detects that the fuel is in the full position.

[16] In an optional embodiment of the present invention, an observation hole is provided at the feeding channel feeding position and the fuel filling position, so that an operator can observe the fuel condition through the observation hole, and the sensor may malfunction or need By manually feeding the feeding mechanism, the operator can manually control the feeding device to stop feeding and stop feeding according to the fuel condition observed in the observation hole.

[17] In the present invention, as an optional embodiment of the feeding device, the feeding mechanism may be a screw conveying mechanism, the inlet of the screw conveying mechanism is located at the bottom of the storage bin, and the outlet thereof is located at the top of the feeding passage. Therefore, after the screw conveying mechanism works, the fuel in the storage tank is delivered into the feeding passage.

[18] In a preferred embodiment of the above embodiment, the storage tank can be placed above the inlet of the screw conveying mechanism, so that the fuel can be automatically replenished and accumulated on the inlet by gravity, facilitating the screw conveying mechanism. Fuel is fed into the feed channel from the inlet.

[19] In a preferred embodiment of the above embodiment, the inlet of the screw conveying mechanism may be lower than the outlet

In the present invention, as an alternative embodiment of the charging mechanism, the feeding mechanism may be a feed plate that slides in the lateral direction of the fuel passage.

[21] In a preferred embodiment of the embodiment, the feed plate may have an operating rod extending out of the storage bin

, for manual operation.

In a preferred embodiment of the embodiment, the fuel outlet of the fuel passage and the fuel inlet may be laterally offset.

[23] As a further optional embodiment of the feeding mechanism, the feeding mechanism may include a valve port, a valve core, a valve stem and a control rod, wherein the valve port is formed in the fuel passage; the valve core has a valve port a matching shape of the weight, which can be closed on the valve port to close the valve port, open the valve port when leaving the valve port; the valve stem is connected to the valve core; one end of the control rod is connected to the valve stem, and the other end is connected Extending out of the fuel passage to form a control end. In this embodiment, a plurality of loose rods extending obliquely upward may be provided on the valve stem.

In an alternative embodiment of the invention, the feed passage may be a cylindrical passage vertically placed on the feed port.

According to the above solid fuel feeding device of the present invention, the effect is remarkable: since the present invention can feed the feeding port through the feeding mechanism, the feeding mechanism can be used without the need to open the furnace, thereby avoiding the existing The cumbersome manual feeding process not only saves manpower, but also is safe and convenient. In particular, the present invention is capable of performing the feeding operation by detecting the first sensor and the second sensor, so that the feeding is more precise, and the feeding into the combustion furnace is ensured, thereby improving the combustion efficiency of the combustion furnace. Country deletion

The following drawings are only intended to illustrate and explain the present invention, and do not limit the scope of the invention. among them,

1 is a schematic structural view of a first embodiment of the present invention;

2 is a schematic structural view of a second embodiment of the present invention;

₃ is a schematic structural view showing a valve port of a feeding mechanism according to a third embodiment of the present invention in a closed state. FIG. ₄ is a schematic structural view showing a valve port of a feeding mechanism according to a third embodiment of the present invention in an open state.

difficult

As shown in Figures 1-4, the solid fuel charging apparatus of the present invention includes a hopper 1, a fuel passage 4, a feed passage 3, and a feeding mechanism 5. The fuel passage 4 has a fuel inlet 41 that communicates with the hopper 1 and a fuel outlet 42 that is connected to the feed passage 3, and a feed port 2 is formed below the feed passage 3. The feeding mechanism 5 is disposed on the fuel passage 4 to control the opening and closing of the fuel passage 4. After the feeding is required, the feeding mechanism 5 can be operated to open the fuel passage 4, so that the fuel in the storage tank 1 passes through the fuel passage 4. Entering the feed passage 3, the feed mechanism 5 can be operated to close the fuel passage 4 after the feed is stopped. In this way, since the feeding mechanism 2 can feed the feeding port 2, the feeding operation can be performed without opening the furnace of the burning furnace, thereby avoiding the cumbersome manual feeding process, which saves manpower and is safe and convenient. In addition, since the fuel passage 4 is closed by the feeding mechanism when the feeding is stopped, the flue effect is prevented from being generated through the feeding port 2 during the combustion process, and the normal operation of the burning furnace is ensured. [33] In the present invention, for some small-sized domestic combustion furnaces, the user can manually operate the feeding mechanism to perform feeding or stop feeding according to the combustion condition of the fuel in the combustion furnace. In a preferred embodiment of the present invention, as shown in FIGS. 1-4, a first sensor 61 for detecting a fuel supply position and a second sensor 62 for detecting a fuel full position may be disposed in the feed passage 3. The feeding mechanism 5 is arranged such that the upper surface of the fuel in the charging passage 3 is located at the feeding position, the fuel passage 4 is opened, and the fuel in the storage tank 1 is introduced into the feeding passage 3; on the fuel in the charging passage 3 The surface is in a fuel full position and the fuel passage 4 is closed. Thus, the feeding device is used, and during the use of the combustion furnace, as the fuel is burned, the upper surface of the fuel in the charging passage 3 is gradually moved downward, and when the upper surface of the fuel is lowered to the feeding position, the first sensor 61 The feeding signal is issued, the feeding structure 5 is controlled to start working, and the combustion passage 4 is opened to allow the fuel stored in the storage tank 1 to enter the feeding passage 3 to replenish the fuel when the fuel is added to the fuel in the charging passage 3. The surface is located at the fuel filling position 吋, the second sensor 62 issues a fuel full signal, and the feeding mechanism 5 controls the fuel passage 4 between the hopper 1 and the charging passage 3 to be closed, thereby stopping the feeding and preventing the combustion of the furnace. During the process, the flue gas escapes a large amount through the passage 4 to generate a flue effect. In the above feeding process, since the feeding mechanism 5 can be fed and stopped by the signals of the first sensor 61 and the second sensor 62, it is possible to accurately feed according to the combustion condition of the combustion furnace, thereby improving the combustion efficiency of the combustion furnace.

[34] As shown in FIG. 12, as an optional embodiment, in the charging device of the present invention, the observation holes 71, 72 may be further provided at the feeding position and the fuel filling position of the feeding passage 3. Therefore, the operator can observe the condition of the fuel through the observation holes 71, 72, and the first sensor 61, the second sensor 62 may malfunction or need to manually feed the feeding mechanism 5 for the civil combustion furnace, and the operator can observe according to the observation. The fuel condition observed by the holes 71, 72 manually controls the feeding of the feeding device and stops the feeding, thereby avoiding the occurrence of the combustion furnace due to the sensor failure, and ensuring the continuous heating of the heat exchanger to be heated by the combustion furnace.

In a preferred embodiment of the invention, the feed channel 3 can be a cylindrical channel that is vertically placed on the feed port 2. Thus, the pressure of the fuel on the furnace hearth can be determined according to the height of the feed port 2 and the fuel level in the feed channel 3. In designing the feed device, the height of the feed channel 3 and the feed position and fuel fill position can be designed. To enable the fuel pressure on the furnace of the fuel furnace to achieve the need for automatic ash removal. The invention will now be described in more detail by way of several embodiments of the feed structure 5.

[37] First embodiment:

As shown in Fig. 1, as an alternative embodiment of the charging structure 5 of the present invention, the feeding mechanism 5 may be a screw conveying mechanism. In a preferred embodiment, the inlet and outlet of the screw conveying mechanism may be formed as a fuel inlet 41 and a fuel outlet 42 of the fuel passage 4, the fuel inlet 41 being located at the bottom of the storage tank 1 and the fuel outlet 42 being located The top of the feed passage 3, so that the fuel in the hopper 1 can be fed from the fuel inlet 41 into the feed passage 3 after the screw feed mechanism is operated.

In this embodiment, the screw conveying mechanism can be driven by a motor 53, which can be provided with a controller

(not shown), the controller controls the motor 53 to operate automatically based on the signals of the first sensor 61 and the second sensor 62. When the first sensor 61 detects that the fuel in the charging passage 3 reaches the feeding position, a feeding signal is sent to the controller, and the controller controls the motor 53 to start rotating, thereby driving the screw conveying mechanism to transport the fuel in the storage tank 1 from the inlet 51. Go to the outlet 52 to add fuel to the feed passage 3; when the second sensor detects that the fuel upper surface added in the feed passage 3 reaches the fuel full position 吋, sends a fuel full signal to the controller, and the controller controls the motor 53 is stopped, so that the screw conveying mechanism is stopped, and the passage between the storage tank 1 and the feeding passage 3 is closed by the thread structure on the screw to avoid the flue effect. This automatic operation mode can be applied to fuel furnaces with high automation requirements. For the charging device used in the civil fuel furnace, the manual operation can also be performed. For example, the controller for automatic control can be not connected, and the first sensor 61 and the second sensor 62 can be connected to the warning device, such as With a warning light and/or a horn or the like, when the first sensor 61 and the second sensor 62 detect that the fuel is in the feeding position or the fuel filling position, the warning device emits a sound and/or a light signal to prompt the operator to The motor 53 performs a switching operation to manually control the operating condition of the screw conveying mechanism. Of course, for some small-sized domestic combustion furnaces, the first sensor 61 and the second sensor 62 may not be provided, and the user may manually control the working condition of the screw conveying mechanism according to the combustion condition of the combustion furnace to perform feeding or stop feeding.

In a preferred embodiment of the above embodiment, as shown in Fig. 1, the storage bin 1 can be placed above the inlet (fuel inlet 41) of the screw conveying mechanism (feeding mechanism 5) so that it can be automatically The fuel is replenished and accumulated at the inlet (fuel inlet 41) to facilitate the screw feed mechanism from which fuel is fed into the feed passage 3. The storage bin 1 can be used in a large-volume box structure, and a large amount of storage therein is used at a time. After the fuel is used, it is necessary to consider feeding in the storage bin 1 after a long period of use, for example, half a year or a year, to reduce the number of feeding operations.

[41] In the present embodiment, the inlet (fuel inlet 41) of the screw conveying mechanism (feeding mechanism 5) may be lower than the outlet (fuel outlet 42) to further prevent the flue gas in the combustion furnace from the feeding passage 3 The top outlet (fuel outlet 42) escapes through the fuel inlet (fuel inlet 41), avoiding the flue effect.

[42] Second embodiment:

In the present invention, as shown in FIG. 2, as an alternative embodiment of the charging mechanism 5, the feeding mechanism 5 may be a fuel passage along the storage tank 1 and the feeding passage 3. 4, the feeding plate sliding in the lateral direction, in the need of feeding, the feeding plate is laterally slid outward, opening the passage 4, so that the fuel in the storage tank 1 can enter the feeding passage 3 through the passage 4, thereby being in the feeding passage 3 is added with fuel; when it is necessary to stop the feeding, the feeding plate is slid laterally inward, and the passage 4 is closed, thereby preventing the fuel in the storage tank 1 from entering the feeding passage 3, and stopping the feeding.

[44] The feed plate can be automatically controlled by manual control or electric (motor and transmission drive) and pneumatic (cylinder drive) according to actual needs. The feed plate may have an operating lever 54 extending beyond the storage bin 1 for manual operation by the operating lever 54. As in the embodiment shown in FIG. 1 above, in the manual control mode, the user can manually operate the operating lever 54 as needed to slide the feeding plate inward or outward as needed, or A sensor 61 and a second sensor 62 are connected to the warning device, and the user manually operates the feeding plate to slide inward or outward according to the signal of the warning device; in the automatic control mode, the corresponding driving device such as the cylinder and the motor A controller for receiving signals of the first sensor 61 and the second sensor 62 is disposed thereon, so that the controller automatically controls the feed plate to slide laterally inward or outward according to signals of the first sensor 61 and the second sensor 62

In a preferred embodiment of the embodiment, as shown in Fig. 2, the fuel inlet and the fuel outlet of the fuel passage 4 are laterally offset to facilitate the inward sliding of the feed plate.

[46] Third embodiment:

As shown in FIGS. 3 and 4, in the third embodiment of the charging mechanism 5 of the present invention, the feeding mechanism 5 includes a valve port 55, a valve body 56, a valve stem 57, and a control lever 58. Wherein the valve port 55 is formed in the fuel passage 4; the spool 56 is a weight having a shape matching the valve port 55, which can be ignited at the valve port 55 The material passage 4 is closed, and the fuel passage 4 is opened when leaving the valve port 55; the valve stem 57 is connected to the valve core 56; one end of the control rod 58 is connected to the valve stem 57, and the other end is extended outside the fuel passage 4. Formed as control terminal 58 1 . In this way, when the loading 吋 is required, the control end 581 of the control rod 58 can be pulled down, so that the control rod 58 drives the valve rod 57 to move upward, so that the valve core 56 connected to the valve rod 57 moves upward, thereby leaving the valve port 55, With the fuel passage 4 in an open state (as shown in FIG. 4), the fuel in the storage tank 1 can enter the feed passage 3 through the fuel passage 4 to perform fuel addition; when it is necessary to stop the feed, release the lever At the control end 581 of the 58th, the spool 56 moves downwardly under gravity to be located on the valve port 55, closing the valve port 55, thereby closing the fuel passage 4 (as shown in FIG. 3), preventing the storage tank The fuel in 1 enters the feed channel 3 and is placed in the combustion process to produce a flue effect.

[48] Also, in this embodiment, the control lever 58 can be automatically controlled by a manual control method or an electric motor (driven by a motor and a transmission mechanism) or a pneumatic (a cylinder driven) according to actual needs. As in the first embodiment shown in FIG. 1 above, in the manual control mode, the user of the small-sized civil combustion furnace can manually pull the control end 581 of the control rod 58 to position the valve core 56 on the valve port 55 as needed. Or the valve port 55 is removed, or the first sensor 61 and the second sensor 62 can be connected to the warning device, and the user manually pulls the control end 581 of the control lever 58 according to the signal of the warning device; A corresponding driving device such as a cylinder and a motor is provided with a controller for receiving signals of the first sensor 61 and the second sensor 62, so that the controller automatically operates the motor or the cylinder according to the signals of the first sensor 61 and the second sensor 62, thereby The spool 55 is actuated to automatically open or close the fuel passage 4.

In a preferred embodiment of the present embodiment, as shown in FIG. 3 and FIG. 4, a plurality of loosely extending pine rods 571 are disposed on the valve stem 57, so that the valve stem is 57 controlled upward movement 吋, the loose rod 57 1 can play a loosening action on the solid fuel thereon, thereby avoiding the vacancy of the fuel and facilitating the smooth passage of the fuel from the valve port 55.

The above description of the preferred embodiments of the present invention is intended to be illustrative only and not to limit the scope of the invention; Or modifications are intended to be included within the scope of the invention.

Claims

Claim

[1] A solid fuel feeding device, characterized in that the charging device comprises:

Storage bin

a fuel passage having a fuel inlet and a fuel outlet, wherein the fuel inlet is connected to the storage tank; a feeding passage connected to the fuel outlet of the fuel passage, and a feeding port formed below the feeding passage;

a feeding mechanism disposed on the fuel passage;

Wherein, the feeding mechanism is arranged to open the fuel passage so that the fuel in the storage tank can enter the feeding passage after the feeding is required; and the fuel passage can be closed after stopping the feeding.

[2] The solid fuel feeding device according to claim 1, wherein the charging device further comprises a first sensor disposed in the feeding passage for detecting a feeding position of the fuel; and a second sensor Provided in the feeding passage for detecting a fuel filling position; wherein the feeding mechanism opens the fuel passage when the first sensor detects that the fuel is in the feeding position, and when the second sensor detects that the fuel is in the filling position, Close the fuel path.

[3] The solid fuel feeding device according to claim 1, wherein an observation hole is provided at a feeding position and a fuel filling position of the feeding passage.

[4] The solid fuel feeding device according to claim 1 or 2, wherein the feeding mechanism is a screw conveying mechanism, the inlet of the screw conveying mechanism is located at the bottom of the storage tank, and the outlet thereof is located at the feeding passage. top.

[5] The solid fuel charging device according to claim 4, wherein the storage tank is placed above the inlet of the screw conveying mechanism.

[6] The solid fuel feeding device according to claim 4, wherein the inlet of the screw conveying mechanism is lower than the outlet.

[7] The solid fuel feeding device according to claim 1 or 2, wherein the feeding mechanism is a feed plate that is slidable in a lateral direction of the fuel passage.

[8] The solid fuel feeding device according to claim 7, wherein the feed plate has A lever that extends out of the storage bin.

[9] The solid fuel charging device according to claim 7, wherein a fuel inlet of the fuel passage and a fuel outlet are laterally offset.

[10] The solid fuel feeding device according to claim 1 or 2, wherein the feeding mechanism comprises:

a valve port formed in the fuel passage;

a valve core, which is a weight having a shape matching with the valve port, can be closed on the valve port to close the valve port, and open the valve port when leaving the valve port;

a valve stem connected to the spool;

The control rod has one end connected to the valve stem and the other end protruding from the fuel passage to form a control end

[11] The solid fuel feeding device according to claim 10, wherein the valve stem is provided with a plurality of loose rods extending obliquely upward.

[12] The solid fuel charging device according to claim 1, wherein the feeding passage is a columnar passage vertically placed on the feeding port.