Energy-saving ash conveying device of economizer

Abstract

The utility model relates to the technical field of coal economizers, in particular to an energy-saving ash conveying device of a coal economizer, which comprises a conveying power source, a conveying pipe is communicated with the conveying power source, the conveying pipe is obliquely and downwards connected with a dry slag bin, a plurality of feeding pipes are communicated with the conveying pipe, the feeding pipes are communicated with an ash hopper of the coal economizer, and the ash hopper of the coal economizer is communicated with the dry slag bin. A cleaning rod abuts against the interior of the conveying pipe and rotates through a rotating mechanism. According to the utility model, the resistance during conveying is reduced, the loss of air flow is avoided, and the output power of a conveying power source does not need to be increased, so that the energy-saving effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a coal economizer technical field especially relates to a coal economizer's energy -conserving ash conveying device. BACKGROUND

[0002] The coal economizer is installed in the lower part of the boiler tail flue for recovering the waste heat of the exhaust gas, the heating surface of the boiler feed water is heated into the saturated water under the pressure of the steam pocket, because it absorbs the heat of the high temperature flue gas, reduces the exhaust gas temperature of the flue gas, saves the energy, improves the efficiency, so it is called the coal economizer. The ash of the coal economizer needs to use the ash conveying device to convey the ash to the dry slag bin, and the ash is conveyed by the compressed air of the conveying power source, so as to convey the ash, because the ash can be attached to the conveying pipe, the blockage is prone to occur, the resistance of conveying is increased, the gas volume needs to be increased, the power of the conveying power source is increased, and the energy is wasted. In order to solve this problem, the utility model provides a kind of coal economizer's energy -conserving ash conveying device UTILITY MODEL CONTENTS

[0003] The utility model aims at solving the shortcomings of the prior art, i.e. the increase of the conveying resistance, the increase of the gas volume, the increase of the power of the conveying power source and the waste of energy, and provides a kind of coal economizer's energy -conserving ash conveying device.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A kind of coal economizer's energy -conserving ash conveying device is designed, including conveying power source, the conveying power source is connected with conveying pipe, the conveying pipe is connected with dry slag bin and inclines downward, multiple feed pipes are connected with conveying pipe, multiple feed pipes are connected with coal economizer ash bucket, cleaning rod is abutted in conveying pipe, and cleaning rod is rotated by rotating mechanism.

[0006] Preferably, multiple pressure detectors are arranged on the conveying pipe.

[0007] Preferably, the rotating mechanism includes a fixed plate, the fixed plate is fixedly connected with the cleaning rod, a support shaft is fixedly connected to the fixed plate, the support shaft is connected with a rotating shaft through a transmission mechanism, the rotating shaft is rotatably connected with the conveying pipe through a sealing bearing, the rotating shaft is positioned by a positioning mechanism, and the support shaft is supported by a support mechanism.

[0008] Preferably, the transmission mechanism includes a first bevel gear, the first bevel gear is fixedly connected to the rotating shaft, a second bevel gear is fixedly connected to the support shaft, and the second bevel gear is engaged with the first bevel gear.

[0009] Preferably, the supporting mechanism comprises a shell, a fixed column is fixedly connected to the shell, the fixed column is fixedly connected with the conveying pipe, the first bevel gear and the second bevel gear are located in the shell, and the rotating shaft and the supporting shaft are both rotationally connected with the shell through sealing bearings.

[0010] Preferably, the positioning mechanism comprises a threaded sleeve, the threaded sleeve is fixedly connected to the conveying pipe, a threaded column is threadedly connected in the threaded sleeve, a connecting plate is threadedly and penetratively connected to the threaded column, and the connecting plate is fixedly connected to the rotating shaft.

[0011] Preferably, a rotating block is fixedly connected to the threaded column.

[0012] The energy-saving ash conveying device of the economizer has the beneficial effects that: the cleaning rod can clean the inner wall of the conveying pipe when rotating, the adhered ash on the inner wall can enter the dry slag bin under the action of gravity and air force due to the inclined arrangement of the conveying pipe, the inner wall of the conveying pipe is smooth, the conveying pipe is prevented from being blocked, the resistance during conveying is reduced, the output power of the conveying power source does not need to be increased, the air volume during conveying is increased, and the energy-saving effect is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 The figure is a structural schematic view of the energy-saving ash conveying device of the economizer;

[0014] Figure 2 The figure is a front view of the energy-saving ash conveying device of the economizer.

[0015] Figure 3 The figure is a perspective view of the rotating shaft and the supporting shaft of the energy-saving ash conveying device of the economizer Figure 1 ;

[0016] Figure 4 The figure is a perspective view of the rotating shaft and the supporting shaft of the energy-saving ash conveying device of the economizer Figure 2 .

[0017] In the figure: 1, dry slag bin; 2, feeding pipe; 3, pressure detector; 4, conveying pipe; 5, conveying power source; 6, connecting plate; 7, rotating shaft; 8, threaded column; 9, threaded sleeve; 10, shell; 11, cleaning rod; 12, fixed plate; 13, supporting shaft; 14, first bevel gear; 15, second bevel gear. DETAILED DESCRIPTION

[0018] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments of the present application.

[0019] Embodiment 1

[0020] With reference to Figures 1-4 The energy-saving ash conveying device of the economizer comprises a conveying power source 5, which can be a Roots blower in particular, a conveying pipe 4 is communicatively arranged on the conveying power source 5, the conveying pipe 4 is connected with a dry slag bin 1 in a downward inclination, a plurality of feeding pipes 2 are communicatively arranged on the conveying pipe 4, valves are arranged on the feeding pipes 2, the plurality of feeding pipes 2 are in communication with an economizer ash hopper, the length of the conveying pipe 4 is 50-60 m, a cleaning rod 11 is abutted in the conveying pipe 4, the cleaning rod 11 is rotatable through a rotating mechanism, the cleaning rod 11 plays a role in cleaning the inner wall of the conveying pipe 4 when rotating, and the conveying pipe 4 is arranged in an inclination, which is beneficial to the ash adhered to the inner wall to enter the dry slag bin 1 under the action of gravity and air force, thereby ensuring the smoothness of the inner wall of the conveying pipe 4, preventing the blockage of the conveying pipe 4, and being beneficial to reducing the resistance during conveying, so that the output power of the conveying power source 5 does not need to be increased to increase the conveying air volume, thereby playing a role in energy saving.

[0021] A plurality of pressure detectors 3 are arranged on the conveying pipe 4 to monitor the pressure.

[0022] The rotating mechanism comprises a fixed plate 12, the fixed plate 12 is fixedly connected with the cleaning rod 11, a support shaft 13 is fixedly connected on the fixed plate 12, the support shaft 13 is connected with a rotating shaft 7 through a transmission mechanism, the rotating shaft 7 is rotatably connected with the conveying pipe 4 through a sealing bearing, the rotating shaft 7 is positioned through a positioning mechanism, the support shaft 13 is supported through a supporting mechanism, the cleaning rod 11 is rotated by rotating the rotating shaft 7 to clean the inner wall.

[0023] The transmission mechanism comprises a first bevel gear 14, the first bevel gear 14 is fixedly connected on the rotating shaft 7, a second bevel gear 15 is fixedly connected on the support shaft 13, the second bevel gear 15 is engaged with the first bevel gear 14, and the second bevel gear 15 and the first bevel gear 14 play a role in transmission.

[0024] The supporting mechanism comprises a shell 10, a fixed column is fixedly connected on the shell 10, a bullet head is arranged at the windward end of the shell 10, which is beneficial to reducing the resistance, the fixed column is fixedly connected with the conveying pipe 4, the first bevel gear 14 and the second bevel gear 15 are located in the shell 10, the rotating shaft 7 and the support shaft 13 are rotatably connected with the shell 10 through sealing bearings, the shell 10 plays a role in protecting the second bevel gear 15 and the first bevel gear 14, preventing the entry of dust, and the transmission ratio of the second bevel gear 15 and the first bevel gear 14 is 1.

[0025] Embodiment 2: Reference Figures 1-4 As another preferred embodiment of the utility model, on the basis of embodiment 1, the positioning mechanism comprises a threaded sleeve 9, the threaded sleeve 9 is fixedly connected to the conveying pipe 4, a threaded column 8 is threadedly connected in the threaded sleeve 9, the connecting plate 6 is threadedly connected to the threaded column 8, the connecting plate 6 is fixedly connected to the rotating shaft 7, a rotating block is fixedly connected to the threaded column 8, the connecting plate 6 increases the force arm when rotating, so as to drive the cleaning rod 11 to rotate, the threaded column 8 is connected to the threaded sleeve 9, so as to determine the position of the cleaning rod 11, and prevent the cleaning rod 11 from blocking the feeding pipe 2.

[0026] When in use: rotate the connecting plate 6, drive the rotating shaft 7 to rotate, under the action of the first bevel gear 14 and the second bevel gear 15, drive the rotating support shaft 13, so that the support shaft 13 drives the cleaning rod 11 to rotate, clean the inner wall of the conveying pipe 4, and the dust on the inner wall enters the dry residue bin 1 under the action of gravity and air force.

[0027] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art, according to the technical scheme and the utility model concept of the utility model, within the technical range disclosed by the utility model, carries out equivalent replacement or change, should be covered in the protection scope of the utility model.

Claims

1. An energy-saving ash conveying device for an economizer, comprising a conveying power source (5), characterized in that, The conveying power source (5) is provided with a conveying pipe (4) in communication, the conveying pipe (4) is connected with a dry slag bin (1) downwardly and obliquely, a plurality of feeding pipes (2) are provided on the conveying pipe (4) in communication, the plurality of feeding pipes (2) are communicated with the economizer ash bucket, a cleaning rod (11) is abutted in the conveying pipe (4), and the cleaning rod (11) is rotated through a rotating mechanism.

2. The energy-saving ash conveying device of an economizer according to claim 1, characterized in that, A plurality of pressure detectors (3) are arranged on the conveying pipe (4).

3. The energy-saving ash conveying device of the coal economizer according to claim 1, characterized in that, The rotating mechanism comprises a fixed plate (12), the fixed plate (12) is fixedly connected with the cleaning rod (11), a support shaft (13) is fixedly connected on the fixed plate (12), the support shaft (13) is connected with a rotating shaft (7) through a transmission mechanism, the rotating shaft (7) is rotatably connected with the conveying pipe (4) through a sealing bearing, the rotating shaft (7) is positioned through a positioning mechanism, and the support shaft (13) is supported through a supporting mechanism.

4. The energy-saving ash conveying device of the coal economizer according to claim 3, characterized in that, The transmission mechanism comprises a first bevel gear (14), the first bevel gear (14) is fixedly connected on the rotating shaft (7), a second bevel gear (15) is fixedly connected on the support shaft (13), and the second bevel gear (15) is engaged with the first bevel gear (14).

5. The energy-saving ash conveying device of an economizer according to claim 4, characterized in that, The supporting mechanism comprises a shell (10), a fixed column is fixedly connected on the shell (10), the fixed column is fixedly connected with the conveying pipe (4), the first bevel gear (14) and the second bevel gear (15) are located in the shell (10), and the rotating shaft (7) and the support shaft (13) are rotatably connected with the shell (10) through sealing bearings.

6. The energy-saving ash conveying device of an economizer according to claim 3, characterized in that, The positioning mechanism comprises a threaded sleeve (9), the threaded sleeve (9) is fixedly connected on the conveying pipe (4), a threaded column (8) is threadedly connected in the threaded sleeve (9), a connecting plate (6) is threadedly connected on the threaded column (8), and the connecting plate (6) is fixedly connected on the rotating shaft (7).

7. The energy-saving ash conveying device of an economizer according to claim 6, characterized in that, The threaded column (8) is fixedly connected with a rotating block. The threaded column (8) is fixedly connected with a rotating block.

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