Assembling device of rotary kiln discharging hopper and assembling construction method

Abstract

The invention provides an assembling device of a rotary kiln discharging hopper and an assembling construction method. The assembling device comprises a frame platform and a plurality of tension supporting pieces. A plurality of groups of slots are formed in the frame platform and are used for detachably inserting a plurality of groups of bolts, so that a blocking part is provided for a wall plate of the to-be-spliced blanking hopper from the bottom; an area enclosed by each group of slots is matched with the bottom outline of the corresponding blanking hopper to be spliced; a plurality of first lifting lugs are arranged on the frame platform close to the edge area, one end of each tension supporting piece is connected with the corresponding first lifting lug, and the other end of each tension supporting piece is connected with a second lifting lug on a wall plate of the to-be-spliced discharging hopper, so that the wall plate of the to-be-spliced discharging hopper, the tension supporting pieces and the plug pins form a stable triangular connecting structure. According to the rotary kiln discharging hopper assembling method, the wall plates of the discharging hopper can be rapidly and accurately arranged in place, and assembling on the ground is safe and reliable; the hopper assembling device is high in field practical degree and particularly suitable for assembling a large number of hoppers with different sizes, and the assembling time can be greatly shortened.

Description

Technical Field

[0001] The invention relates to the technical field of metallurgical equipment, and in particular to an assembling device and an assembling construction method for a lower hopper of a rotary kiln. Background Art

[0002] When assembling the lower hoppers at the head and tail of the rotary kiln, since the lower hoppers are generally supplied in loose parts, they need to be assembled on site. The shape of the lower hopper is generally a conical structure, and the hopper wall panels are of various sizes and the large panels are inconvenient to assemble. If the traditional assembly method is used, the conical structure makes the splicing and welding of the hopper inconvenient, which may cause the welds of the hopper to deviate and fail to meet the design specifications. The on-site assembly of the rotary kiln lower hopper is mostly high-altitude work. If it is assembled at high altitude, there will be safety hazards, low installation efficiency, and more cranes. Summary of the invention

[0003] In view of this, the present invention proposes an assembling device and an assembling construction method for a rotary kiln lower hopper, aiming to solve the problems of low efficiency and potential safety hazards in the existing lower hopper assembly. In one aspect, the present invention provides an assembly device for a lower hopper of a rotary kiln, comprising: a frame platform and a plurality of tension support members; wherein: The frame platform is provided with a plurality of slots for detachably inserting a plurality of latches, thereby providing a blocking portion from the bottom for the wall plate to be spliced ​​with the lower hopper; The area enclosed by each group of slots matches the bottom contour of the corresponding lower hopper to be spliced; A plurality of first lifting ears are provided on the frame platform near the edge area, one end of each of the tension support members is connected to the first lifting ear, and the other end is connected to the second lifting ear on the wall panel of the lower hopper to be spliced, so that the wall panel of the lower hopper to be spliced, the tension support member and the pin form a stable triangular connection structure.

[0004] Furthermore, in the above-mentioned assembly device of the lower hopper of the rotary kiln, the frame platform is square, and each group of the slots is evenly arranged along the diagonal position of the frame platform or along the midpoint line of the opposite sides of the frame platform.

[0005] Furthermore, in the above-mentioned assembly device of the lower hopper of the rotary kiln, the number of the slots in each group is at least 4, and the shapes of the slots are consistent.

[0006] Furthermore, in the above-mentioned assembly device of the lower hopper of the rotary kiln, the slot is L-shaped or elongated.

[0007] Furthermore, in the above-mentioned assembly device of the lower hopper of the rotary kiln, the latch is an angle steel or a rectangular iron block.

[0008] Furthermore, in the above-mentioned assembly device of the lower hopper of the rotary kiln, each corner of the frame platform is provided with a transverse strip groove and a longitudinal strip groove.

[0009] Furthermore, in the above-mentioned assembly device of the lower hopper of the rotary kiln, the tension support member is a hand winch.

[0010] Furthermore, in the above-mentioned assembly device for the lower hopper of the rotary kiln, the frame platform comprises: a connected rectangular frame and a platform plate; wherein, The top of the rectangular frame is open, and the platform plate is welded to the top of the rectangular frame; The platform board is provided with a plurality of slots.

[0011] The rotary kiln lower hopper assembly device of the present invention has a simple structure, is easy to obtain materials, has a low cost, and is reusable; by providing a plurality of groups of slots on a frame platform, corresponding latches can be detachably plugged in to block the bottom of the wall panel of the lower hopper to be spliced, and by using tension support members to firmly support and adjust the angle of the wall panel from the outside, the splicing quality of the hopper to be spliced ​​can be ensured, and the work efficiency can be greatly improved, the use of manpower and mechanical equipment can be saved, and safety hazards can be reduced.

[0012] On the other hand, the present invention also proposes an assembly construction method for a lower hopper of a rotary kiln, comprising the following steps: hoisting a first wall panel of the lower hopper to be assembled onto a frame platform and placing it at a corresponding latch, connecting one end of a first tension support member to a first lifting ear on the frame platform, and connecting the other end to a second lifting ear on the first wall panel; Adjusting the first tension support member so that the first lower hopper wall panel reaches a target angle, and after the first lower hopper wall panel is firmly secured on the frame platform, releasing the crane hook on the first wall panel; Continue to hoist the second wall panel of the lower hopper to be assembled, and use the second tension support member to dock and fix the second wall panel with the first wall panel; According to the above method, other adjacent wall panels are assembled and welded, and fixed to form a lower hopper as a whole.

[0013] Furthermore, in the above-mentioned assembly construction method of the lower hopper of the rotary kiln, a plurality of reinforcing plates are welded between the inner walls of two adjacent lower hopper wall panels.

[0014] The rotary kiln lower hopper assembly construction method provided by the present invention can enable the lower hopper wall plate to be quickly and accurately positioned, and the assembly on the ground is safe and reliable; it has a high degree of practicality on site, is particularly suitable for assembling a large number of hoppers of different sizes, and can greatly shorten the assembly time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings: Figure 1 A schematic structural diagram of an assembly device for a lower hopper of a rotary kiln provided in an embodiment of the present invention; Figure 2 A schematic diagram of a slotted structure on an assembling platform in an assembling device for a lower hopper of a rotary kiln provided in an embodiment of the present invention; Figure 3 A schematic diagram of the structure of a latch in a rotary kiln lower hopper assembly device provided by an embodiment of the present invention; Figure 4 Another schematic structural diagram of the latch in the rotary kiln lower hopper assembly device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0016] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to be able to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features described in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0017] See also Figure 1 and Figure 2 The assembling device of the lower hopper of the rotary kiln in the embodiment of the present invention comprises: a frame platform 1 and a plurality of tension support members 2; wherein, the frame platform 1 is provided with a plurality of groups of slots 3 for detachably plugging a plurality of groups of latches 4, thereby providing a blocking portion from the bottom for the wall panel 5 of the lower hopper to be assembled; the area enclosed by each group of the slots 3 matches the bottom contour of the corresponding lower hopper to be assembled; the frame platform 1 is provided with a plurality of first lifting ears 13 near the edge area, one end of each of the tension support members 2 is connected to the first lifting ear 13, and the other end is connected to the second lifting ear 51 on the wall panel 5 of the lower hopper to be assembled, so that the wall panel 5 of the lower hopper to be assembled, the tension support member 2 and the latch 4 form a stable triangular connection structure.

[0018] Specifically, the frame platform 1 can be welded by using the steel structure of the packing frame channel steel. The frame platform 1 is square, and each group of the slots 3 is evenly arranged along the diagonal position of the frame platform 1 or along the midpoint line of the opposite sides of the frame platform 1. The first lifting lug 13 and the second lifting lug 51 can both be 4.

[0019] The number of the slots 3 in each group is at least 4, and the shapes of the slots 3 are the same. When there are 4 slots 3, each slot 3 can be respectively arranged near the corners of the frame platform 1. In order to more firmly fix the wall panels 5 to be spliced ​​in the lower hopper, more than 4 slots 3 can be arranged.

[0020] More specifically, the slot 3 is L-shaped or strip-shaped. The pins 4 are arranged one-to-one with the slots 3, and the shape of the pins 4 matches the shape of the slots 3. Figure 3 and Figure 4 , the latch 4 is an angle steel or a rectangular iron block.

[0021] In a specific implementation of this embodiment, the pins 4 inserted into each group of slots 3 uniformly arranged at diagonal positions of the frame platform 1 are angle steels.

[0022] In a specific implementation of this embodiment, the latches 4 inserted into each group of slots 3 evenly arranged along the line connecting the midpoints of the opposite sides of the frame platform 1 are rectangular iron blocks.

[0023] In this embodiment, in order to adapt to the splicing process of the lower hopper of a larger size, each corner of the frame platform 1 is provided with a transverse strip groove 8 and a longitudinal strip groove 7. The transverse strip grooves and the longitudinal strip grooves are spaced and arranged vertically to provide support for each wall panel 5. Rectangular iron blocks can be inserted into the transverse strip grooves and the longitudinal strip grooves.

[0024] Furthermore, the frame platform 1 comprises: a connected rectangular frame 11 and a platform plate 12; wherein the top of the rectangular frame 11 is open, and the platform plate 12 is welded on the top of the rectangular frame 11; and a plurality of groups of the slots 3 are provided on the platform plate 12.

[0025] Specifically, the platform plate 12 can be a patterned steel plate. The size of the platform plate is larger than the top opening size of the frame platform 1. The tension support member 2 is a hand chain hoist.

[0026] During specific implementation, the structure of the latch 4 can be selected according to the size of the lower hopper to be spliced.

[0027] In this embodiment, for the square cone hopper, angle steels are set at the corresponding four corner vertices of the frame platform 1, and four-point lifting ears are set at the four-side frame beams of the platform to connect the hand chain hoist and the lifting ears on the lower hopper wall plate 5, so that the wall plate 5 is firmly fixed on the assembly device. According to the principle of mechanical balance, when the operator hoists the hopper to the assembly device, the load force will be transferred to the positioning angle steel or rectangular iron block of the device, and the upper wall plate 5 surface will be centered through the connection of the hand chain hoist and the sling so that the force of the plate is transferred to the device. The device can play an effective role in the assembly of square cone or conical hoppers, and has strong operability, safety and reliability.

[0028] It can be obviously concluded from the above that the assembly device of the lower hopper of the rotary kiln provided in this embodiment has a simple structure, is easy to obtain materials, has low cost, and is reusable; by opening a plurality of groups of slots on the frame platform, the corresponding pins can be detachably plugged in to block the bottom of the wall panel of the lower hopper to be spliced, and the wall panel is firmly supported and the angle is adjusted from the outside through the tension support parts, which ensures the splicing quality of the hopper to be spliced ​​and can greatly improve work efficiency, save labor and the use of mechanical equipment, and reduce safety hazards.

[0029] The present invention also provides a method for assembling the rotary kiln lower hopper using the assembling device, comprising the following steps: Step 1, hoist the first wall panel of the lower hopper to be assembled onto the frame platform 1, and place it on the corresponding pin 4, connect one end of the first tension support 2 to the first lifting ear 13 on the frame platform 1, and connect the other end to the second lifting ear on the first wall panel.

[0030] In specific implementation, a second lifting lug 51 is set at the smaller end of each lower hopper wall panel at a distance of about 1 / 4 of the height of the hopper wall panel, and a crane 6 and corresponding tools are prepared for lifting. The wall panel is placed near the four-point angle steel or rectangular iron block pin 4 assembled in advance, and the wall panel slides freely to the fixed point position, and taps it to make it firm and tightly fit.

[0031] Step 2, adjust the first tension support 2 so that the first lower hopper wall panel reaches the target angle, and after the first lower hopper wall panel is firmly fixed on the frame platform 1, release the crane hook on the first wall panel.

[0032] During the specific implementation, adjust the tightness of the hand chain hoist so that the wall panel reaches the angle required by the drawing. At this time, the hand chain hoist should be tightened. The wall panel forms a stable triangle through the first lifting lug 13 connected to the hand chain hoist, the second lifting lug and the pin 4 on the platform board. After checking that the lower hopper wall panel is firmly on the assembly device, release the crane hook on the wall panel.

[0033] Step 3, continue to hoist the second wall panel to be spliced ​​into the lower hopper, and use the second tension support 2 to dock and fix the second wall panel with the first wall panel; During the specific implementation, the second wall panel should be selected as the wall panel adjacent to the first wall panel, and it should be connected with the adjacent edge of the first wall panel by adjusting the hand winch. It should be fine-tuned to the position to ensure that the weld gap between the two adjacent wall panels meets the welding requirements, and then spot welded to fix it.

[0034] A plurality of reinforcing plates are welded between the inner walls of two adjacent lower hopper wall plates, so as to prevent the wall plates from being deformed during high-temperature welding.

[0035] Step 4: assemble and weld other adjacent wall panels according to the above method, and fix them to form a lower hopper as a whole.

[0036] After the current lower hopper is installed, it is hoisted to the stacking position. At this time, the assembly device operating table can be assembled with the next hopper.

[0037] The related parts of the method embodiment and the above-mentioned device embodiment can be referred to each other and will not be described in detail here.

[0038] In summary, the rotary kiln lower hopper assembly construction method of the present invention can make the lower hopper wall panel quickly and accurately put into place, and the assembly on the ground is safe and reliable; it is highly practical on site, and is particularly suitable for assembling a large number of hoppers of different sizes, which can greatly shorten the assembly time.

[0039] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. An assembly device for a lower hopper of a rotary kiln, characterized in that: include: A frame platform and a plurality of tension supports; wherein, The frame platform is provided with a plurality of slots for detachably inserting a plurality of latches, thereby providing a blocking portion from the bottom for the wall plate to be spliced ​​with the lower hopper; The area enclosed by each group of slots matches the bottom contour of the corresponding lower hopper to be spliced; A plurality of first lifting ears are provided on the frame platform near the edge area, one end of each of the tension support members is connected to the first lifting ear, and the other end is connected to the second lifting ear on the wall panel of the lower hopper to be spliced, so that the wall panel of the lower hopper to be spliced, the tension support member and the pin form a stable triangular connection structure.

2. The assembly device for the lower hopper of a rotary kiln according to claim 1, characterized in that: The frame platform is square, and each group of the slots is evenly arranged along the diagonal positions of the frame platform or along the line connecting the midpoints of opposite sides of the frame platform.

3. The assembly device for the lower hopper of a rotary kiln according to claim 1, characterized in that: The number of the slots in each group is at least 4, and the slots are of the same shape.

4. The assembly device for the lower hopper of a rotary kiln according to claim 1, characterized in that: The slot is L-shaped or strip-shaped.

5. The assembly device for the lower hopper of a rotary kiln according to claim 1, characterized in that: The latch is an angle steel or a rectangular iron block.

6. The assembly device for the lower hopper of a rotary kiln according to claim 1, characterized in that: Each corner of the frame platform is provided with a transverse strip groove and a longitudinal strip groove.

7. The assembly device for the lower hopper of a rotary kiln according to claim 1, characterized in that: The tension support member is a hand chain hoist.

8. The assembly device for the lower hopper of a rotary kiln according to claim 1, characterized in that: The frame platform comprises: a connected rectangular frame and a platform plate; wherein, The top of the rectangular frame is open, and the platform plate is welded to the top of the rectangular frame; The platform board is provided with a plurality of slots.

9. A method for assembling a rotary kiln lower hopper using the assembling device of claim 1, characterized in that: The following steps are involved: Lift the first wall panel of the lower hopper to be assembled onto the frame platform and place it at the corresponding latch, connect one end of the first tension support member to the first lifting ear on the frame platform, and connect the other end to the second lifting ear on the first wall panel; Adjusting the first tension support member so that the first lower hopper wall panel reaches a target angle, and after the first lower hopper wall panel is firmly secured on the frame platform, releasing the crane hook on the first wall panel; Continue to hoist the second wall panel of the lower hopper to be assembled, and use the second tension support member to dock and fix the second wall panel with the first wall panel; According to the above method, other adjacent wall panels are assembled and welded, and fixed to form a lower hopper as a whole.

10. The method for assembling the lower hopper of a rotary kiln according to claim 9, characterized in that: A plurality of reinforcing plates are welded between the inner walls of two adjacent lower hopper wall plates.

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