Boiler slag waste heat recovery cooling device

Abstract

The invention provides a boiler slag waste heat recovery cooling device, and relates to the technical field of waste heat recovery. A feeding port is welded to the top of the recycling box, two supporting plates of rectangular block structures are fixed to the front end face of an inner arm of the recycling box and the rear end face of the inner wall of the recycling box, water circulates in a pipeline, two first hydraulic cylinders are fixed to the recycling box, the extending ends of the two first hydraulic cylinders are fixed to a baffle, and the baffle is inserted into the recycling box. A supporting base is rotationally arranged on the recycling box and placed on the ground, and a second hydraulic cylinder is fixed to the top end face of the supporting base. In the aspect of discharging, the recycling box drives the baffle to move upwards through the two first hydraulic cylinders, and a convenient channel is provided for slag dumping; when a first hydraulic cylinder breaks down, a second turning rake in the turning mechanism can seal a gap of a first turning rake under the action of a fourth hydraulic cylinder, pushing discharging is achieved in cooperation with driving of a motor and a threaded rod, and the reliability and practicability of the device are greatly improved through double discharging guarantee.

Description

Technical Field

[0001] The present invention relates to the technical field of waste heat recovery, and in particular to a boiler slag waste heat recovery and cooling device. Background Art

[0002] The boiler slag waste heat recovery and cooling device is mainly used to recover and cool the high-temperature slag generated during boiler operation. Its core function is to recover the slag heat while cooling the slag, thereby achieving the dual goals of energy saving and facilitating subsequent processing.

[0003] As shown in application number CN201510977268.5, the present invention discloses a slag waste heat recovery and utilization device, comprising a body, a cold water tank and a hot water tank arranged inside the body, a slag conveying channel being provided at the lower portion of the body, the hot water tank being provided above the slag conveying channel, the cold water tank being provided above the hot water tank, and further comprising a heat conducting network arranged between the slag conveying channel and the hot water tank, the heat conducting network being provided with a heat conducting network water inlet pipe and a heat conducting network water outlet pipe, the heat conducting network being connected to the cold water tank via the heat conducting network water inlet pipe, and the heat conducting network being connected to the hot water tank via the heat conducting network water outlet pipe. The slag waste heat recovery and utilization device of the present invention has high slag waste heat utilization efficiency, simple structure, convenient operation and maintenance, strong adaptability, good economy, and low pollution.

[0004] Similar to the slag heat recovery device of the above application, there are still the following deficiencies during use: During preheat recovery, although the slag can be turned over, the turning mechanism is different to achieve emergency unloading and the structure is poor; multiple turning of the slag cannot be achieved, which affects the heat recovery effect of the slag. Summary of the Invention

[0005] The present invention relates to a boiler slag waste heat recovery and cooling device, which solves the problem that, during preheat recovery, although the slag can be turned over, the turning mechanism is different to achieve emergency unloading, resulting in poor structural performance; and multiple turning of the slag cannot be achieved, which affects the heat recovery effect of the slag.

[0006] The present invention provides a boiler slag waste heat recovery and cooling device, which specifically includes: a recovery box; a feed port is welded on the top of the recovery box, two rectangular block-shaped support plates are fixed on the front end surface of the inner arm and the rear end surface of the inner wall of the recovery box, water flows in the pipeline, two first hydraulic cylinders are fixed on the recovery box, the protruding ends of the two first hydraulic cylinders are fixed on the baffle, and the baffle is plugged into the recovery box; a support seat is rotatably provided on the recovery box, the support seat is placed on the ground, and a second hydraulic cylinder is fixed on the top surface of the support seat, and the protruding end of the second hydraulic cylinder is in contact with the bottom end surface of the recovery box.

[0007] Furthermore, the protruding end of the second hydraulic cylinder is polished, and after the polishing, the protruding end of the second hydraulic cylinder has an arc-shaped structure.

[0008] Furthermore, a pipe is inserted into the recovery box, the pipe is in contact with the top surfaces of the two supporting plates, and the pipe has a wavy structure.

[0009] Furthermore, protective rods are welded in a linear array inside the recycling box, and the protective rods welded in a linear array are all cylindrical rod-shaped structures. The protective rods welded in a linear array are all welded to the connecting plate of the rectangular plate-shaped structure, and the top surface of the connecting plate is welded to the top surface of the inner wall of the recycling box. The protective rods welded in a linear array are located between the feed port and the pipeline.

[0010] Furthermore, a sealing mechanism is installed on the recovery box, which is composed of a base body, a first guide rod, a sealing plate and a third hydraulic cylinder. An L-shaped base body is welded on the front end face of the recovery box, and two first guide rods are slid on the base body. The protruding ends of the two first guide rods are fixed on the sealing plate, and the sealing plate covers the feed port. A third hydraulic cylinder is fixed on the base body, and the protruding end of the third hydraulic cylinder is fixed on the sealing plate.

[0011] Furthermore, a turning mechanism is installed in the recycling box, and the turning mechanism is composed of a second guide rod, a first turning rake, a threaded rod, a motor, a protective cover, a second turning rake, a base block and a fourth hydraulic cylinder. Two second guide rods are fixed in the recycling box, and the first turning rake slides on the two second guide rods. The bottom of the first turning rake contacts the bottom end surface of the inner wall of the recycling box. A threaded rod is rotated on the recycling box, and the threaded rod is threadedly connected to the first turning rake. A motor is fixed to the left end surface of the recycling box, and the output shaft of the motor is fixed on the threaded rod.

[0012] Furthermore, a protective cover is fixed to the left end face of the inner wall of the recycling box, the protective cover covers the top of the threaded rod, and the top of the protective cover is a pointed structure.

[0013] Furthermore, a second turning rake is slidably mounted on the first turning rake, a base block is welded to the right end face of the first turning rake, two fourth hydraulic cylinders are fixed to the rear end face of the base block, and the protruding ends of the two fourth hydraulic cylinders are fixed to the second turning rake. When the two fourth hydraulic cylinders are retracted, the rake teeth on the second turning rake are aligned with the gap on the first turning rake, and at this time, the gap on the first turning rake is in a sealed state.

[0014] Furthermore, four auxiliary holes are fixed on the front end surface of the support seat, and the four auxiliary holes are all rectangular hole structures. The two auxiliary holes on the front side are aligned with the two auxiliary holes on the rear side.

[0015] The present invention provides a boiler slag waste heat recovery and cooling device, which has the following beneficial effects: In terms of unloading, the recovery box of this application drives the baffle upward through two first hydraulic cylinders, providing a convenient channel for slag dumping; when the first hydraulic cylinder fails, the second turning rake in the turning mechanism can seal the gap of the first turning rake under the action of the fourth hydraulic cylinder, and cooperate with the motor and threaded rod to drive the unloading. The double unloading guarantee greatly improves the reliability and practicality of the device.

[0016] In the heat recovery and slag turning links of this application, the second hydraulic cylinder at the bottom of the recovery box has a polished arc-shaped protruding end. During the reciprocating telescopic movement to push the recovery box to tilt, it can not only effectively turn the slag, but also significantly reduce the wear on itself and the bottom of the recovery box; the wavy pipe in the box increases the contact length with the slag, effectively improving the heat recovery efficiency; at the same time, the motor-driven threaded rod in the turning mechanism drives the first turning rake to move left and right, and cooperates with the second turning rake to achieve all-round turning of the slag, further ensuring the heat recovery effect.

[0017] In terms of protection and sealing performance, the linear array of protective rods set in the recovery box of this application can prevent large pieces of slag from directly hitting the pipeline, avoid pipeline damage, and extend the service life of the equipment; the third hydraulic cylinder in the sealing mechanism drives the sealing plate to move, realize the automatic opening and closing of the feed port, prevent heat loss and dust overflow, and improve the sealing and environmental protection of the device.

[0018] In addition, the protection provided by the protective cover to the threaded rod avoids the problem of jamming caused by slag and ensures the stable operation of the turning mechanism; in terms of the convenience and flexibility of the device, the auxiliary hole design on the support seat facilitates the insertion of a forklift, realizing the safe and fast transfer of the device; the design of the second hydraulic cylinder pushing the recovery box to tilt not only helps to turn the slag, but also allows the slag to be smoothly poured out from the right side when discharging the slag, which is easy to operate.

[0019] Overall, the recycling box performs well in unloading, heat recovery, protection, transfer, etc. through clever coordination between structures and functional integration. Compared with traditional devices, it has a higher degree of automation, stronger practicality and better overall performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments are briefly introduced below.

[0021] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0022] In the attached figure: Figure 1 The figure shows an axial structural schematic diagram of the boiler slag waste heat recovery and cooling device of the present invention; Figure 2The main view structural schematic diagram of the boiler slag waste heat recovery cooling device is shown. Figure 3 The axial view structural schematic diagram of the boiler slag waste heat recovery cooling device after being partially cut open is shown. Figure 4 The main view structural schematic diagram of the boiler slag waste heat recovery cooling device after being partially cut open is shown. Figure 5 The axial view structural schematic diagram of the boiler slag waste heat recovery cooling device after removing the recovery tank is shown. Figure 6 The main view structural schematic diagram of the boiler slag waste heat recovery cooling device is shown. Figure 5 The enlarged structural schematic diagram of A of the boiler slag waste heat recovery cooling device is shown. Figure 7 The axial view structural schematic diagram of the turning mechanism is shown. Figure 8 The right view structural schematic diagram of the boiler slag waste heat recovery cooling device after removing the recovery tank is shown.

[0023] List of reference signs 1, recovery tank; 101, feeding port; 102, first hydraulic cylinder; 103, baffle; 104, support seat; 105, second hydraulic cylinder; 106, supporting plate; 107, protection rod; 108, connecting plate; 109, auxiliary hole; 2, sealing mechanism; 201, seat body; 202, first guide rod; 203, sealing plate; 204, third hydraulic cylinder; 3, pipeline; 4, turning mechanism; 401, second guide rod; 402, first turning rake; 403, threaded rod; 404, motor; 405, protection cover; 406, second turning rake; 407, base block; 408, fourth hydraulic cylinder. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] Unless otherwise defined, all terms (including technical and scientific terms) used in the embodiments of the present application have the same meanings as commonly understood by those skilled in the art to which the present application belongs. It should also be understood that terms such as those defined in generally used dictionaries should be interpreted as having meanings consistent with their meanings in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense, unless the embodiments of the present application explicitly define so.

[0026] The terms "first," "second," and similar terms used in the embodiments of the present invention do not indicate any order, quantity, or importance, but are simply used to distinguish different components. Terms such as "a," "an," or "the" do not indicate a limit on quantity, but rather indicate the presence of at least one. Similarly, terms such as "include" or "comprise" mean that the element or object preceding the term encompasses the elements or objects listed after the term, and their equivalents, without excluding other elements or objects. In the following description, spatial and directional terms such as "upper," "lower," "front," "back," "top," "bottom," "vertical," and "horizontal" may be used to describe embodiments of the present invention. However, it should be understood that these terms are used solely to facilitate the description of the embodiments shown in the figures and do not require that the actual device be constructed or operated in a specific orientation. In the following description, terms such as "connect," "couple," "fixed," and "attached" may refer to a direct connection between two elements or structures without any other elements or structures between them, or an indirect connection between two elements or structures through an intermediate element or structure, unless otherwise expressly stated herein.

[0027] Example 1: Please refer to Figures 1 to 8 : The present invention proposes a boiler slag waste heat recovery and cooling device, comprising: a recovery box 1; a feed port 101 welded to the top of the recovery box 1; two rectangular block-shaped support plates 106 are fixed to the front end surface of the inner arm and the rear end surface of the inner wall of the recovery box 1; water flows in the pipe 3; two first hydraulic cylinders 102 are fixed to the recovery box 1; the extended ends of the two first hydraulic cylinders 102 are fixed to the baffle 103, and the baffle 103 is plugged into the recovery box 1; when dumping slag, the two first hydraulic cylinders 102 are driven to extend, and the two first hydraulic cylinders 102 drive the baffle 103 to move upward, so that the slag can be easily dumped from the baffle 103 later; There is a supporting base 104 that rotates on the recycling box 1. The supporting base 104 is placed on the ground. A second hydraulic cylinder 105 is fixed to the top surface of the supporting base 104. The protruding end of the second hydraulic cylinder 105 contacts the bottom end surface of the recycling box 1. During use, the second hydraulic cylinder 105 is driven to reciprocate and extend. Under the continuous push of the second hydraulic cylinder 105, the recycling box 1 can be tilted back and forth. At this time, the slag in the recycling box 1 can be turned over, ensuring the heat recovery effect of the slag. In the process of discharging the slag, the second hydraulic cylinder 105 is driven to contract after the baffle 103 is opened. At this time, the slag in the recycling box 1 will be poured out from the right side of the recycling box 1, which is convenient for removal.

[0028] Among them, the protruding end of the second hydraulic cylinder 105 is polished. After polishing, the protruding end of the second hydraulic cylinder 105 is an arc-shaped structure. During the extension and retraction process of the second hydraulic cylinder 105, the wear of the protruding end of the second hydraulic cylinder 105 and the bottom of the recovery box 1 can be reduced.

[0029] Among them, a pipe 3 is inserted into the recovery box 1, and the pipe 3 contacts the top surface of the two support plates 106. The pipe 3 has a wavy structure. During use, the wavy structure of the pipe 3 can extend the length of the pipe 3 located in the recovery box 1, thereby improving the heat recovery effect.

[0030] Among them, protective rods 107 are welded in a linear array inside the recycling box 1. The protective rods 107 welded in a linear array are all cylindrical rod-shaped structures. The protective rods 107 welded in a linear array are all welded on the connecting plate 108 of the rectangular plate-shaped structure. The top surface of the connecting plate 108 is welded to the top surface of the inner wall of the recycling box 1. The protective rods 107 welded in a linear array are located between the feed port 101 and the pipeline 3. When slag is added to the recycling box 1 through the feed port 101, the blocking of the protective rods 107 can prevent large pieces of slag from directly colliding with the pipeline 3 and causing damage to the pipeline 3, thereby avoiding leakage caused by damage to the pipeline 3.

[0031] Among them, a sealing mechanism 2 is installed on the recycling box 1, and the sealing mechanism 2 consists of a base body 201, a first guide rod 202, a sealing plate 203 and a third hydraulic cylinder 204. An L-shaped base body 201 is welded on the front end face of the recycling box 1, and two first guide rods 202 are slid on the base body 201. The protruding ends of the two first guide rods 202 are fixed on the sealing plate 203, and the sealing plate 203 covers the feed port 101. A third hydraulic cylinder 204 is fixed on the base body 201, and the protruding end of the third hydraulic cylinder 204 is fixed on the sealing plate 203. During use, driving the third hydraulic cylinder 204 to extend and retract can drive the sealing plate 203 to move forward and backward, and the opening and closing of the feed port 101 is realized at this time. The opening and closing of the feed port 101 driven by the third hydraulic cylinder 204 is highly automated.

[0032] Among them, a turning mechanism 4 is installed in the recycling box 1, and the turning mechanism 4 is composed of a second guide rod 401, a first turning rake 402, a threaded rod 403, a motor 404, a protective cover 405, a second turning rake 406, a base block 407 and a fourth hydraulic cylinder 408. Two second guide rods 401 are fixed in the recycling box 1, and the first turning rake 402 slides on the two second guide rods 401. The bottom of the first turning rake 402 contacts the bottom end surface of the inner wall of the recycling box 1. A screw is rotated on the recycling box 1. The threaded rod 403 is threadedly connected to the first turning rake 402. A motor 404 is fixed to the left end face of the recovery box 1. The output shaft of the motor 404 is fixed to the threaded rod 403. When the slag needs to be turned over, the motor 404 is driven to rotate back and forth, and the motor 404 drives the threaded rod 403 to rotate. Under the threaded drive of the threaded rod 403, the first turning rake 402 can be reciprocated left and right, and the turning of the slag can be achieved through the reciprocating movement of the first turning rake 402.

[0033] Among them, a protective cover 405 is fixed on the left end face of the inner wall of the recycling box 1. The protective cover 405 covers the threaded rod 403, and the top of the protective cover 405 is a pointed structure. During use, the protective cover 405 can prevent the slag from contacting the threaded rod 403 during feeding, causing the threaded rod 403 to get stuck during the driving process, and because the top of the protective cover 405 is a pointed structure, the slag can be prevented from remaining on the top of the protective cover 405.

[0034] Among them, a second flipping rake 406 slides on the first flipping rake 402, a base block 407 is welded to the right end surface of the first flipping rake 402, and two fourth hydraulic cylinders 408 are fixed to the rear end surface of the base block 407. The protruding ends of the two fourth hydraulic cylinders 408 are fixed to the second flipping rake 406. When the two fourth hydraulic cylinders 408 are retracted, the rake teeth on the second flipping rake 406 are aligned with the gap on the first flipping rake 402. At this time, the gap on the first flipping rake 402 is in a sealed state. When the first hydraulic cylinder 1 02 When damage makes it impossible to unload, the two fourth hydraulic cylinders 408 are driven to contract, and the two fourth hydraulic cylinders 408 drive the second turning rake 406 to move forward to complete the sealing of the gap between the first turning rake 402, and the drive motor 404 rotates. The motor 404 drives the threaded rod 403 to rotate. Under the threaded drive of the threaded rod 403, the second turning rake 406 and the first turning rake 402 move to the right to complete the unloading. Compared with the existing device, the turning mechanism 4 can realize both turning and unloading, and the structure is flexible.

[0035] Example 2, based on Example 1, Figures 1-8 As shown, four auxiliary holes 109 are fixed on the front end surface of the support seat 104. The four auxiliary holes 109 are all rectangular hole structures. The two auxiliary holes 109 on the front side are aligned with the two auxiliary holes 109 on the rear side. When the device is transferred, the forklift arm can be inserted into the auxiliary hole 109 for transfer, and the transfer is convenient and safe.

[0036] The working principle of this embodiment is: the third hydraulic cylinder 204 is driven to contract, and the third hydraulic cylinder 204 drives the sealing plate 203 to move forward, at which time the feed port 101 is opened, and the slag is added into the recovery box 1 through the feed port 101, and the third hydraulic cylinder 204 is driven to extend and close the feed port 101; the heat emitted by the slag in the recovery box 1 can heat the moisture in the pipe 3 to realize heat recovery; when the slag needs to be turned over, the drive motor 404 rotates back and forth, and the motor 404 drives the threaded rod 403 to rotate, and the left and right reciprocating movement of the first turning rake 402 can be realized under the threaded drive of the threaded rod 403, and the turning of the slag can be realized by the left and right reciprocating movement of the first turning rake 402; at the same time, the second hydraulic cylinder 105 is driven to reciprocate and extend, and the recovery box can be completed under the continuous push of the second hydraulic cylinder 105 1 reciprocating tilt, at this time, the slag in the recovery box 1 can be turned over, ensuring the heat recovery effect of the slag; when discharging the slag, the two first hydraulic cylinders 102 are driven to extend, and the two first hydraulic cylinders 102 drive the baffle 103 to move upward, at this time the opening of the baffle 103 is completed, and after the baffle 103 is opened, the second hydraulic cylinder 105 is driven to retract, and the slag in the recovery box 1 will be poured out from the right side of the recovery box 1; when the first hydraulic cylinder 102 is damaged, the two fourth hydraulic cylinders 408 are driven to retract, and the two fourth hydraulic cylinders 408 drive the second turning rake 406 to move forward to complete the sealing of the gap between the first turning rake 402, and the drive motor 404 rotates, and the motor 404 drives the threaded rod 403 to rotate. Under the threaded drive of the threaded rod 403, the second turning rake 406 and the first turning rake 402 move to the right to complete the unloading.

Claims

1. A boiler slag waste heat recovery and cooling device, characterized in that: include: Recycling box; a feed port is welded on the top of the recycling box, two rectangular block-shaped support plates are fixed on the front end surface of the inner arm and the rear end surface of the inner wall of the recycling box, water flows in the pipeline, and two first hydraulic cylinders are fixed on the recycling box, and the protruding ends of the two first hydraulic cylinders are fixed on the baffle, and the baffle is plugged into the recycling box; there is a rotatable support base on the recycling box, the support base is placed on the ground, and a second hydraulic cylinder is fixed on the top surface of the support base, and the protruding end of the second hydraulic cylinder is in contact with the bottom end surface of the recycling box.

2. The boiler slag waste heat recovery and cooling device according to claim 1, characterized in that: The extended end of the second hydraulic cylinder is polished, and after the polishing process, the extended end of the second hydraulic cylinder is an arc-shaped structure.

3. The boiler slag waste heat recovery and cooling device according to claim 2, characterized in that: The recovery box is interspersed with a pipe, which contacts the top surfaces of the two supporting plates and has a wavy structure.

4. The boiler slag waste heat recovery and cooling device according to claim 3, characterized in that: Protective rods are welded in a linear array inside the recycling box. The linear array welded protective rods are all cylindrical rod-shaped structures. The linear array welded protective rods are all welded to the connecting plate of the rectangular plate-shaped structure. The top surface of the connecting plate is welded to the top surface of the inner wall of the recycling box. The linear array welded protective rods are located between the feed port and the pipeline.

5. The boiler slag waste heat recovery and cooling device according to claim 4, characterized in that: A sealing mechanism is installed on the recovery box, which consists of a base body, a first guide rod, a sealing plate and a third hydraulic cylinder. An L-shaped base body is welded on the front end face of the recovery box, and two first guide rods are slid on the base body. The protruding ends of the two first guide rods are fixed on the sealing plate, and the sealing plate covers the feed port. A third hydraulic cylinder is fixed on the base body, and the protruding end of the third hydraulic cylinder is fixed on the sealing plate.

6. The boiler slag waste heat recovery and cooling device according to claim 5, characterized in that: A turning mechanism is installed in the recycling box, and the turning mechanism consists of a second guide rod, a first turning rake, a threaded rod, a motor, a protective cover, a second turning rake, a base block and a fourth hydraulic cylinder. Two second guide rods are fixed in the recycling box, and the first turning rake slides on the two second guide rods. The bottom of the first turning rake contacts the bottom end surface of the inner wall of the recycling box. A threaded rod is rotated on the recycling box, and the threaded rod is threadedly connected to the first turning rake. A motor is fixed on the left end surface of the recycling box, and the output shaft of the motor is fixed on the threaded rod.

7. The boiler slag waste heat recovery and cooling device according to claim 6, characterized in that: A protective cover is fixed on the left end face of the inner wall of the recycling box. The protective cover covers the top of the threaded rod, and the top of the protective cover is a pointed structure.

8. The boiler slag waste heat recovery and cooling device according to claim 7, characterized in that: A second turning rake slides on the first turning rake, a base block is welded to the right end face of the first turning rake, two fourth hydraulic cylinders are fixed to the rear end face of the base block, and the protruding ends of the two fourth hydraulic cylinders are fixed on the second turning rake. When the two fourth hydraulic cylinders are retracted, the rake teeth on the second turning rake are aligned with the gap on the first turning rake, and the gap on the first turning rake is in a sealed state.

9. The boiler slag waste heat recovery and cooling device according to claim 8, characterized in that: The front end surface of the support seat is fixed with four auxiliary holes, all of which are rectangular hole structures, and the two auxiliary holes on the front side are aligned with the two auxiliary holes on the rear side.

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