CN113465388B - Furnace body steel construction safe in utilization - Google Patents
Furnace body steel construction safe in utilization Download PDFInfo
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- CN113465388B CN113465388B CN202110755827.3A CN202110755827A CN113465388B CN 113465388 B CN113465388 B CN 113465388B CN 202110755827 A CN202110755827 A CN 202110755827A CN 113465388 B CN113465388 B CN 113465388B
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 30
- 239000010959 steel Substances 0.000 title claims abstract description 30
- 238000010276 construction Methods 0.000 title claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 103
- 238000001816 cooling Methods 0.000 claims abstract description 65
- 238000002347 injection Methods 0.000 claims abstract description 26
- 239000007924 injection Substances 0.000 claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 239000000498 cooling water Substances 0.000 claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 238000005253 cladding Methods 0.000 claims description 34
- 230000003014 reinforcing effect Effects 0.000 claims description 28
- 230000000149 penetrating effect Effects 0.000 claims description 11
- 230000001502 supplementing effect Effects 0.000 claims description 5
- 230000006698 induction Effects 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 description 21
- 238000009434 installation Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000003466 welding Methods 0.000 description 6
- 239000011449 brick Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000001338 self-assembly Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/14—Supports for linings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D9/00—Cooling of furnaces or of charges therein
- F27D2009/0002—Cooling of furnaces
- F27D2009/001—Cooling of furnaces the cooling medium being a fluid other than a gas
- F27D2009/0013—Cooling of furnaces the cooling medium being a fluid other than a gas the fluid being water
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D19/00—Arrangements of controlling devices
- F27D2019/0028—Regulation
- F27D2019/0056—Regulation involving cooling
Abstract
The invention relates to the technical field of furnace body structures. The steel structure comprises a square cylindrical furnace body formed by combining four L-shaped furnace wall plates, four adjusting bases arranged at the corner parts of the lower end of the furnace body and a water cooling mechanism arranged on the outer side wall of the furnace body; the water cooling mechanism comprises a plurality of water cooling grooves which are arranged on the outer side wall of the furnace wall plate and extend transversely, overflow short pipes are arranged at two ends in the water cooling grooves, and the upper ends of the overflow short pipes are lower than the groove walls of the water cooling grooves; the water injection device further comprises a water injection assembly for adding cooling water into the water cooling tank and a detection assembly for detecting the water level in the water cooling tank. According to the invention, the cooling water absorbs heat and evaporates to cool the furnace body, so that the high-temperature working condition around the furnace body can be improved, and the steel structure deformation risk caused by excessive high temperature of the furnace body can be prevented.
Description
Technical Field
The invention relates to the technical field of furnace body structures, in particular to a furnace body steel structure safe to use.
Background
The heating furnace is divided into electric heating, combustion heating and the like according to different heating modes, has wide application range and is one of necessary heating equipment for carrying out various high-temperature reactions. Conventional heating furnaces generally comprise a furnace body and a lining arranged in the furnace body, wherein the furnace body is formed by forging and welding steel, is assembled in a production workshop, and is transported to a site for direct installation. The prior heating furnace mainly has the following problems in the practical application process:
1. in part of large-scale industrial application occasions, because the heating furnace is large in size, if the heating furnace is assembled in a production workshop and then transported to the site, the mode consumes a large amount of manpower and material resources because of large total mass and large volume; if an assembled structure is adopted, the furnace body of the heating furnace has larger high-temperature deformation risk due to long-term bearing of high temperature, and the reliability of assembly needs to be emphasized;
2. in the installation process of the large heating furnace, because the weight is large, the base of the large heating furnace is usually required to be fixed through embedded bolts, anchor rods and the like in order to ensure the stability of the large heating furnace, however, the complete level of the base cannot be ensured due to the influence of construction errors, basic levelness and other factors when the embedded bolts and the anchor rods are installed, the furnace body is inclined due to the deviation of the base, the gravity center is deviated and the like, and the safety risk of the heating furnace is increased in the normal use process;
3. the internal temperature of a hearth of a large heating furnace is extremely high, although certain heat conduction can be blocked by refractory bricks of the lining, the furnace body is generally in a high-temperature state, deformation is easy to occur, the stress performance of a welding line, a connecting piece and the like is influenced, the safety risk and the production risk are increased, and therefore, how to cool the furnace body in an effective mode is also a great problem to be solved urgently.
Disclosure of Invention
The invention aims to provide a safe-to-use furnace steel structure capable of preventing the furnace body from being excessively high in temperature.
In order to achieve the aim of the invention, the invention adopts the following technical scheme: the furnace body steel structure safe in use comprises a square tubular furnace body formed by combining four L-shaped furnace wall plates, four adjusting bases arranged at the corner parts of the lower end of the furnace body and a water cooling mechanism arranged on the outer side wall of the furnace body;
the water cooling mechanism comprises a plurality of water cooling grooves which are arranged on the outer side wall of the furnace wall plate and extend transversely, overflow short pipes are arranged at two ends in the water cooling grooves, and the upper ends of the overflow short pipes are lower than the groove walls of the water cooling grooves; the water injection device further comprises a water injection assembly for adding cooling water into the water cooling tank and a detection assembly for detecting the water level in the water cooling tank.
Preferably, the outer side wall of the furnace wall plate is also provided with a plurality of vertical reinforcing longitudinal ribs, and the reinforcing longitudinal ribs are staggered with the water cooling grooves; and water passing holes penetrating through water cooling grooves on two sides of the reinforcing longitudinal ribs are also formed in the reinforcing longitudinal ribs.
Preferably, the water injection assembly comprises a water injection pipe for injecting cooling water into a water cooling tank at the uppermost layer and a water injection pump for pumping the cooling water into the water injection pipe, and the water injection pump is electrically connected with the water supplementing controller.
Preferably, the detection assembly comprises a pair of induction electrodes symmetrically arranged on the groove walls at two sides of the water cooling groove, the induction electrodes are electrically connected with the detector, and the detector is electrically connected with the water supplementing controller.
Preferably, a triangular groove reinforcing rib plate is arranged between the lower surface of the water cooling groove and the outer side wall of the furnace wall plate.
Preferably, edges on two sides of the furnace wall plate are provided with folds, and the inside and outside of the folds opposite to the two adjacent furnace wall plates are overlapped to form a V-shaped locking part; the locking parts of two adjacent furnace wall plates are provided with locking mechanisms, and each locking mechanism comprises a cladding plate with a pi-shaped cross section and a trapezoid-shaped insertion strip, wherein the cladding plate is positioned at the outer side of the locking part and matched with the locking part, and the insertion strip is arranged at the inner side of the locking part and has a trapezoid cross section; a plurality of central fastening screws are uniformly arranged on the outer side surface of the embedded strip along the length direction of the embedded strip, central screw holes matched with the central fastening screws are correspondingly arranged on the folded edges of the adjacent furnace wall plates and the cladding plates, the central fastening screws are arranged in the central screw holes in a penetrating manner, and central fastening nuts are adapted to the outer ends of the central fastening screws; the cladding plate, the folded edge and the embedded strip are locked by a central fastening screw and a central fastening nut.
Preferably, side fastening screws are arranged on the furnace wall plate opposite to the two sides of the cladding plate, and side screw holes are arranged on the two sides of the cladding plate; the side fastening screw rod is arranged in the side screw rod hole in a penetrating way, and the outer end of the side fastening screw rod is provided with a side fastening nut in an adapting way; the two sides of the cladding plate are locked with the furnace wall plate through side fastening screws and side fastening nuts.
Preferably, the inner surfaces of the two sides of the cladding plate are provided with U-shaped clamping grooves extending along the length direction of the cladding plate, clamping bars are arranged on the furnace wall plates opposite to the U-shaped clamping grooves, the clamping bars are matched with the U-shaped clamping grooves, and the side fastening screw is arranged on the clamping bars.
Preferably, the central fastening screw and the side fastening screws are flexible screws, the flexible screws comprise an inner frame and a rod body sleeved outside the inner frame, and the inner frame comprises a top disc, a bottom disc and a plurality of connecting strips; the connecting strips are positioned between the top disc and the bottom disc, are uniformly distributed in an annular shape around the axle centers of the top disc and the bottom disc, and are welded with the top disc and the bottom disc respectively at two ends; the center of the rod body is provided with a rod hole, and the rod hole is sleeved outside the connecting strip; the upper end of the rod body is welded with the upper ends of the top disc and the connecting strip, and the lower end of the rod body is welded with the lower end of the connecting strip; the central fastening nut and the side fastening nuts are T-shaped nuts, and triangular rib plates are arranged between the upper surface of the lower section of the T-shaped nuts and the outer side surface of the upper end of the T-shaped nuts.
Preferably, the surfaces of the folds opposite to the folds and the surfaces of the folds opposite to the cladding plate are provided with mutually meshed key teeth extending in the transverse direction.
The beneficial effects of the invention are concentrated in that: the cooling water can be utilized to absorb heat and evaporate to cool the furnace body, so that the high-temperature working condition of the periphery of the furnace body can be improved, and the steel structure deformation risk caused by excessive high temperature of the furnace body can be prevented. In the use process, the cooling water is injected into the water cooling tank through the water injection assembly, and the cooling water is heated and evaporated in the working process of the heating furnace, so that the high temperature on the furnace body can be absorbed, the temperature of the furnace body is kept in a certain range, and the temperature of the furnace body is prevented from being too high. The water cooling tank also plays a role of a transverse reinforcing rib, so that the structural strength of the furnace body is improved to a certain extent, the overall high-temperature working condition in a production workshop around the furnace body is relieved along with the reduction of the temperature of the furnace body, and the arrangement and the installation of other intelligent circuit equipment are facilitated.
Drawings
FIG. 1 is a schematic view of the structure of a furnace body of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic diagram of a cross section of a water cooling tank;
FIG. 4 is an enlarged view of portion A of FIG. 2;
FIG. 5 is a schematic view of the structure of the flexible screw;
FIG. 6 is a schematic view of the structure of a T-nut;
FIG. 7 is a schematic view of a portion of the structure shown in FIG. 1 in a bottom view;
FIG. 8 is a schematic top view of the adjustment base;
FIG. 9 is a schematic diagram of a front view of an adjustment base;
fig. 10 is a schematic structural view of the retaining disk.
Detailed Description
The heating furnace and the specific structure thereof are shown in combination with fig. 1-10, and mainly comprise a furnace body 0, wherein the furnace body 0 is formed by combining four L-shaped furnace wall plates 1, and the whole furnace body is square cylinder-shaped. The combination mode of the furnace bodies can mainly adopt welding or splicing and locking by utilizing an assembly locking mechanism, and for the small furnace body 0, the furnace body 0 can be directly transported to a production workshop for installation after the factory building is assembled due to the limited total volume and weight. However, for the middle-large furnace body 0, considering the convenience of the transportation link, the furnace wall plate 1 and other accessories can be transported to the site for assembly, and in order to save the labor hour consumed by welding and reduce the welding processing error, the locking mechanism is preferably selected for assembly, so that the site assembly efficiency is convenient to improve and the labor hour is saved.
The furnace body 0 is arranged on the adjusting base, the adjusting base has the function of conveniently and rapidly adjusting the levelness of the furnace body 0, the adjusting is of course the horizontal fine adjustment of the furnace body 0, the function mainly comprises the trace levelness errors caused by resonance pre-buried errors and horizon errors, and the integral gravity center of the furnace body 0 is corrected, so that the safety of the furnace body 0 in the whole production process is improved. In addition, the invention also comprises a water cooling mechanism arranged on the outer side wall of the furnace body 0, wherein the water cooling mechanism is mainly used for controlling the temperature of the furnace body 0, preventing the temperature of the furnace body 0 from being too high, so as to inhibit the high-temperature working condition of the periphery side of the furnace body 0 to a certain extent, not only can improve the production environment, but also can prevent various electronic accessories, valve accessories and the like which are matched and installed on the furnace body 0 from causing high-temperature impact, and improve the overall working condition.
In terms of the specific structure of the adjusting base, as shown in fig. 7, in order to match the use of the adjusting base, it can be seen that in a bottom view state, an L-shaped bottom support plate 2 extending along the inner side wall of the furnace wall plate 1 is arranged on the inner side wall of the corner portion at the lower end of the furnace wall plate 1, that is, the bottom support plate 2 extends transversely, the bending angle of the bottom support plate 2 follows the furnace wall plate 1, the bottom support plate 2 is directly welded on the furnace wall plate 1, a plurality of first reinforcing rib plates 12 are arranged between the lower surface of the bottom support plate 2 and the inner surface of the furnace wall plate 1 so as to improve the structural stability of the bottom support plate 2 on the furnace wall plate 1, it can be seen that a second reinforcing rib plate can be welded between the inner surface of the furnace wall plate 1 and the upper surface of the bottom support plate 2, and only one installation position of the first reinforcing rib plates 12 is simply shown in the figure; in practical application, because the bottom support plate 2 needs to be combined with the adjusting base, the first reinforcing rib plate and the second reinforcing rib plate can be designed according to practical requirements, and the combination of the adjusting base and the bottom support plate 2 is not affected, for example, a yielding gap matched with the first reinforcing rib plate and the second reinforcing rib plate is designed on the adjusting base. Two strip-shaped first connecting holes 3 are respectively formed in two ends of the bottom support plate 2, and the adjusting base is locked with the bottom support plate 2 at the first connecting holes 3.
As shown in fig. 8, the adjusting base comprises a bottom plate 4, and the bottom plate 4 may be L-shaped, triangle-like, etc., and the overall shape of the bottom plate 4 is triangle-like as shown in fig. 8. The upper surface back-off of bottom plate 4 is provided with a U-shaped channel-section steel 5 that cooperatees with bottom plate 2, U-shaped channel-section steel 5 direct welded fastening is on bottom plate 4, just so U-shaped channel-section steel 5 welds with bottom plate 4, and U-shaped channel-section steel 5 both ends all are provided with connecting bolt 6 with the position that first connecting hole 3 is relative, and connecting bolt 6 corresponds with first connecting hole 3, in order to further guarantee the stability that connecting bolt 6 is fixed on U-shaped channel-section steel 5, as shown in fig. 9, the through-hole with connecting bolt 6's pole portion matched with is seted up to the top surface of U-shaped channel-section steel 5, connecting bolt 6's pole portion passes the through-hole from bottom to top, and connecting bolt 6's head and pole portion respectively with U-shaped channel-section steel 5 weld, can improve connecting bolt 6 and U-shaped channel-section steel 5's welded joint area like this, improve its fixed intensity, still be provided with pillow 11 between connecting bolt 6's head and the bottom plate 4 simultaneously, support connecting bolt 6's lower extreme through pillow 11, be convenient for dispersing, stable transmission to bottom plate 4.
As shown in fig. 9, two sets of positioning nuts 7 are fitted on the connecting bolt 6, the positioning nuts 7 are used for locking the bottom plate 2, typically, each set of positioning nuts 7 includes two, and in fig. 9, for simplifying the illustration, only one set is shown, and the support and locking degree of the bottom plate 2 can be effectively ensured by the two positioning nuts 7. The connecting bolts 6 pass through the first connecting holes 3 on the bottom supporting plate 2, and the bottom supporting plate 2 is positioned between two groups of positioning nuts 7. In addition, since the heating furnace is heavy equipment, it is not required to move in a workshop, and in order to further improve the installation stability, the heating furnace can be directly fixed with the ground installation foundation by adopting the embedded bolts 9, the anchor rods and the like, that is, the bottom plate 4 of the invention is directly fixed on the installation foundation. In order to achieve the fixation, as shown in fig. 8, the bottom plates 4 on two sides of the U-shaped channel steel 5 are provided with strip-shaped second connecting holes 8, the second connecting holes 8 are matched with embedded screws 9, and the embedded screws 9 are arranged in the second connecting holes 8 in a penetrating manner and are locked with the bottom plates 4 through fixing nuts 10. The specific number of the second connecting holes 8 and the embedded screws 9 can be flexibly adjusted according to the volume weight of the furnace body 0, as shown in fig. 8, two and three second connecting holes 8 are respectively arranged on the bottom plates 4 at the inner side and the outer side of the two ends of the U-shaped channel steel 5.
Firstly, excavating a foundation pit on an installation foundation, and carrying out concrete pre-burying treatment on the pre-burying screw rod 9, namely, after the pre-burying screw rod 9 is positioned and stabilized in the foundation pit, pouring concrete; in order to guarantee the bonding strength of pre-buried screw rod 9 and concrete, the fixed fender dish 13 that is provided with of lower extreme of pre-buried screw rod 9 forms to pull through fender dish 13 and concrete piece, realizes stable fixed, in order to avoid keeping out the concrete hollowing that appears in dish 13 below, be provided with a plurality of intercommunicating pore 14 on the fender dish 13, intercommunicating pore 14 can be convenient for concrete thick liquid flow to keep out the dish 13 below.
After the foundation concrete is thoroughly and firmly dried, the bottom plate 4 is installed, and the embedded screw 9 penetrating through the second connecting hole on the bottom plate and the bottom plate 4 are fixed by the fixing nut 10. Immediately after the set of positioning nuts 7 on the lower layer on the connecting bolt 6 is installed, the assembled furnace body is hoisted and moved to the adjusting base, the bottom supporting plate 2 on the furnace wall plate 1 is aligned with the U-shaped groove steel 5, the connecting bolt 6 passes through the first connecting hole 3 on the bottom supporting plate 2, and then the set of positioning nuts 7 on the upper layer are installed on the connecting bolt 6. After the furnace body is installed in place, positioning nuts 7 on the connecting bolts 6 are adjusted according to the horizontal requirement, and the positioning nuts 7 are utilized to correct and adjust the overall levelness of the furnace body 0. By the method, the levelness of the furnace body 0 can be finely adjusted, the influence caused by insufficient base levelness is overcome, the center of gravity of the furnace body 0 is corrected, and the safety in the subsequent use process is improved.
In the specific form of the invention in which the locking mechanism is used for assembly, and in connection with figures 1, 2 and 4, there is shown a schematic view of the assembly of the panels 1 in a concentrated view. As shown in fig. 4, the edges of the two sides of the furnace wall plate 1 are provided with folded edges 15, and the folded edges 15 comprise an inclined section and a straight section, and the inner and outer overlapped parts of the folded edges 15 opposite to the two adjacent furnace wall plates 1 form a V-shaped locking part. That is, the folded edge 15 of one furnace wall plate 1 is positioned on the outer side and the other is positioned on the inner side, and after the folded edge 15 and the folded edge are spliced, a locking part with a V-shaped cross section is formed. Locking mechanisms are arranged at locking parts of two adjacent furnace wall plates 1, and the locking mechanisms are used for locking the locking parts.
As shown in fig. 4, the locking mechanism includes a cladding plate 16 with a pi-shaped cross section, which is located at the outer side of the locking portion and is matched with the locking portion, and a molding 17 with a trapezoidal cross section, which is arranged at the inner side of the locking portion, and the cladding plate 16 and the molding 17 realize clamping and locking of the folded edges 15, and because the cladding plate 16 has a pi-shaped structure, after the cladding plate 16 is fixedly installed, the two folded edges 15 can be effectively limited transversely, so that the two folded edges are prevented from moving transversely, and the stability of assembly is ensured. For the furnace body 0 with a large weight, since each furnace wall plate 1 has a large weight, in order to achieve a longitudinal limitation with higher strength, the surface of the folded edge 15 opposite to the folded edge 15 and the surface of the folded edge 15 opposite to the cladding plate 16 may be provided with mutually engaged key teeth extending in the transverse direction. Through the meshing stress of the key teeth, interaction is formed between the two connected furnace wall plates 1, and the sliding deformation is avoided.
Regarding the specific connection mode between the panel strip 17 and the cladding plate 16, a plurality of central fastening screws 18 are uniformly arranged on the outer side surface of the panel strip 17 along the length direction of the panel strip 17, central screw holes matched with the central fastening screws 18 are correspondingly arranged on the folded edges 15 of the adjacent furnace wall plates 1 and the cladding plate 16, the central fastening screws 18 are arranged in the central screw holes in a penetrating manner, and central fastening nuts 19 are adapted to the outer ends of the central fastening screws. The cladding plate 16, the folded edge 15 and the filler rod 17 are locked by a central fastening screw 18 and a central fastening nut 19. As shown in fig. 1, the central fastening screw 18 and the central fastening nut 19 are provided with three groups, the specific number of which can be increased or decreased in case the fastening requirements are met. In order to further improve the strength of the connection, side fastening screws 21 are provided on the furnace wall plate 1 opposite to the two sides of the cladding plate 16, and side screw holes are provided on the two sides of the cladding plate 16. The side fastening screw 21 is inserted into the side screw hole, and the outer end is adapted with a side fastening nut 20. The two side edges of the cladding plate 16 are locked with the furnace wall plate 1 through side fastening screws 21 and side fastening nuts 20.
The invention abandons the traditional workshop assembly and transportation mode and the field welding assembly mode, adopts the locking mechanism to assemble the furnace wall plate 1 in a combined way, forms a locking part between the furnace wall plate 1 and the furnace wall plate 1 through folding edges 15, and then uses the cladding plate 16 and the embedded strip 17 to clamp and lock the locking part inside and outside, so that the overall stability after locking is improved, and simultaneously, the situation of weak stress near a combined seam is improved under the traditional combination mode, so that the assembly stability and the assembly efficiency of the furnace body are greatly improved. On this basis, the inner surfaces of the two sides of the cladding plate 16 are provided with U-shaped clamping grooves extending along the length direction of the cladding plate 16, the furnace wall plate 1 opposite to the U-shaped clamping grooves is welded in advance with clamping strips 22, the clamping strips 22 are matched with the U-shaped clamping grooves, and in this case, the side fastening screw 21 can be arranged on the clamping strips 22.
Of course, in addition to the furnace body 0, the outer layer of which is formed by the furnace wall plate 1, the heating furnace of the invention also comprises an inner lining layer, which is usually a brickwork layer, so as to meet the requirements of temperature locking, heat insulation and fire resistance, and the inner lining layer can be built in the furnace body 0 after the self assembly. For ease of masonry, the inner side walls of the furnace wall plate 1 near the lower end are provided with lining pallets 28 extending transversely along the inner side walls of the furnace wall plate 1, as shown in the bottom view in fig. 7. The inner side wall of the furnace body 0 above the lining support plate 28 is sequentially provided with the heat radiation reflecting layer 29 and the refractory brick brickwork layer 30 from outside to inside, that is, the lining layer comprises the heat radiation reflecting layer 29 and the refractory brick brickwork layer 30, and the heat radiation reflecting layer 29 and the refractory brick brickwork layer 30 are mutually combined, so that the heat-insulating effect is better. The center of the furnace body 0 is provided with a matched fire grate 31, and the edge of the fire grate 31 is placed on the edge of the lining supporting plate 28, and the fire grate 31 is used as a main place for fuel combustion in use.
Of course, although the inner liner is provided, it is impossible to completely isolate the heat from the outside, in other words, the furnace body 0 has a certain high temperature, and when the combustion temperature is high, there is a certain thermal deformation due to the high thermal deformation, and when the conventional fastening screw is used, the fastening screw has poor flexibility, which may cause deformation of the bonding position of the furnace wall plate 1 of the furnace body 0, thereby affecting the use. In order to improve the situation, the fastening screw of the present invention may employ a flexible screw, which has a certain flexibility in addition to a sufficient strength for buffering the high-temperature thermal deformation of the furnace body 0.
As shown in fig. 5, the central fastening screw 18 and the side fastening screws 21 are flexible screws, and the flexible screws comprise an inner frame and a rod body 23 sleeved outside the inner frame, and the inner frame comprises a top disc 24, a bottom disc 25 and a plurality of connecting strips 26. The connecting strips 26 are located between the top plate 24 and the bottom plate 25, are uniformly distributed annularly around the axes of the top plate 24 and the bottom plate 25, two ends of the connecting strips 26 are welded with the top plate 24 and the bottom plate 25 respectively, the number of the connecting strips 26 in the figure is only four, and actually more connecting strips can be provided to ensure that the connecting strips have enough strength, and high-temperature resistant elastic filler can be filled between the connecting strips 26 to further improve the strength of the connecting strips. The center of the rod body 23 is provided with a rod hole, and the rod hole is sleeved outside the connecting strip 26, and the outer surface of the rod body is provided with threads. The upper end of the rod body 23 is welded with the upper ends of the top disc 24 and the connecting strip 26, and the lower end of the rod body 23 is welded with the lower end of the connecting strip 26. The central fastening nut 19 and the side fastening nuts 20 are T-shaped nuts, as shown in fig. 6, and triangular rib plates 27 are arranged between the upper surface of the lower section of the T-shaped nuts and the outer side surface of the upper end. After adopting this form, when thermal deformation occurs, the rod body 23 of the flexible bolt is subjected to a large shearing force, but can release the deformation stress received by the connecting strip 26 through deformation to a certain extent, thereby preventing the flexible bolt from breaking and ensuring the effectiveness and stability of connection.
Compared with the traditional heating furnace, the water cooling mechanism has the advantages that the effect of cooling the furnace body 0 is realized through a very simple water cooling mode, the thermal deformation of the furnace body 0 is ensured to be in a controllable range, and the peripheral high-temperature working condition is improved. Specifically, as shown in fig. 1, the water cooling mechanism comprises a plurality of water cooling grooves 32 which are arranged on the outer side wall of the furnace wall plate 1 and extend transversely, the water cooling grooves 32 can be directly welded with the furnace wall plate 1 by using L-shaped steel, and the water cooling mechanism not only serves as a water cooling channel, but also can play a role of reinforcing ribs, so that the structural strength and stability of the furnace wall plate 1 are improved, and the deformation risk of the furnace wall plate is reduced. In order to improve the connection strength between the water cooling tank 32 and the furnace wall plate 1, a triangular tank reinforcing rib plate 37 is arranged between the lower surface of the water cooling tank 32 and the outer side wall of the furnace wall plate 1.
And overflow short pipes 33 are arranged at two ends in the water cooling tank 32, and the upper ends of the overflow short pipes 33 are lower than the tank wall of the water cooling tank 32. Through the design of overflow short tube 33, make upper water-cooling tank 32 after reaching rated water level, unnecessary cooling water can flow to lower floor's water-cooling tank 32 through overflow short tube 33, has improved the maneuverability of moisturizing. Of course, a water injection assembly for adding cooling water into the water cooling tank 32 and a detection assembly for detecting the water level in the water cooling tank 32 are also included.
As mentioned above, due to the overflow short pipe 33, the cooling water in the upper water-cooling tank 32 can be sequentially fed into the lower water-cooling tank 32, so the water injection assembly of the present invention generally only includes a water injection pipe for injecting cooling water into the water-cooling tank 32 located at the uppermost layer and a water injection pump for pumping cooling water into the water injection pipe, and the water injection pump is electrically connected with the water-compensating controller, and the present invention realizes automatic control of the water injection pump by the water-compensating controller in combination with detection of the detecting assembly. As shown in fig. 3, the detecting assembly includes a pair of sensing electrodes 36 symmetrically disposed on two side walls of the water cooling tank 32, the sensing electrodes 36 are electrically connected to a detector, and the detector is electrically connected to a water replenishment controller. When the water level in the water cooling tanks 32 reaches, the two sensing electrodes 36 are conducted, the detector detects the water level signals in all the water cooling tanks 32, and when the water level in all the water cooling tanks 32 reaches the standard, the water injection pump stops running, otherwise, the water supplementing controller controls the water injection pump to continuously pump water.
According to the invention, the cooling water is injected into the water cooling tank 32 through the water injection assembly, and the cooling water is heated and evaporated in the working process of the heating furnace, so that the high temperature on the furnace body 0 can be absorbed, the temperature of the furnace body 0 is kept within a certain range, and the over-high temperature of the furnace body is prevented. The water cooling tank 32 also plays a role of a transverse reinforcing rib, so that the structural strength of the furnace body is improved to a certain extent, the overall high-temperature working condition in a production workshop around the furnace body is relieved along with the reduction of the temperature of the furnace body, and the arrangement and the installation of other intelligent circuit equipment are facilitated.
Of course, the water cooling tank 32 on the furnace wall plate 1 of the present invention is used as a transverse reinforcing rib, so that a reinforcing transverse rib is not required to be separately provided, but a plurality of vertical reinforcing longitudinal ribs 34 may be provided on the outer side wall of the furnace wall plate 1 according to need, and the reinforcing longitudinal ribs 34 are staggered with the water cooling tank 32. In order to avoid the influence of the reinforcing longitudinal ribs 34 on the flow of the cooling water in the water cooling tank 32, the reinforcing longitudinal ribs 34 are further provided with water passing holes 35 penetrating through the water cooling tank 32 at both sides of the reinforcing longitudinal ribs 34.
Claims (9)
1. The utility model provides a furnace body steel construction safe in utilization which characterized in that: comprises a square cylindrical furnace body (0) formed by combining four L-shaped furnace wall plates (1), four adjusting bases arranged at the corner parts of the lower end of the furnace body (0) and a water cooling mechanism arranged on the outer side wall of the furnace body (0);
the water cooling mechanism comprises a plurality of water cooling grooves (32) which are arranged on the outer side wall of the furnace wall plate (1) and extend transversely, overflow short pipes (33) are arranged at two ends in the water cooling grooves (32), and the upper ends of the overflow short pipes (33) are lower than the groove walls of the water cooling grooves (32); the device also comprises a water injection assembly for adding cooling water into the water cooling tank (32) and a detection assembly for detecting the water level in the water cooling tank (32);
edges on two sides of the furnace wall plates (1) are provided with folded edges (15), and the folded edges (15) opposite to the two furnace wall plates (1) are overlapped inside and outside to form a V-shaped locking part; the locking parts of two adjacent furnace wall plates (1) are provided with locking mechanisms, and each locking mechanism comprises a cladding plate (16) with a pi-shaped cross section and a trapezoid insertion strip (17) arranged at the inner side of each locking part, wherein the cladding plate is positioned at the outer side of each locking part and matched with each locking part; a plurality of central fastening screws (18) are uniformly arranged on the outer side surface of the embedded strip (17) along the length direction of the embedded strip (17), central screw holes matched with the central fastening screws (18) are correspondingly arranged on the folded edges (15) of the adjacent furnace wall plates (1) and the cladding plates (16), the central fastening screws (18) are arranged in the central screw holes in a penetrating mode, and central fastening nuts (19) are arranged at the outer ends of the central fastening screws in a penetrating mode; the cladding plate (16), the folded edge (15) and the embedded strip (17) are locked through a central fastening screw (18) and a central fastening nut (19).
2. The safe-to-use furnace steel structure of claim 1, wherein: the outer side wall of the furnace wall plate (1) is also provided with a plurality of vertical reinforcing longitudinal ribs (34), and the reinforcing longitudinal ribs (34) are staggered with the water cooling grooves (32); the reinforcing longitudinal ribs (34) are also provided with water passing holes (35) penetrating through the water cooling grooves (32) on two sides of the reinforcing longitudinal ribs (34).
3. The safe-to-use furnace steel structure of claim 2, wherein: the water injection assembly comprises a water injection pipe for injecting cooling water into a water cooling tank (32) at the uppermost layer and a water injection pump for pumping the cooling water into the water injection pipe, and the water injection pump is electrically connected with the water supplementing controller.
4. A safe-to-use furnace steel structure according to claim 3, wherein: the detection assembly comprises a pair of induction electrodes (36) symmetrically arranged on the groove walls at two sides of the water cooling groove (32), the induction electrodes (36) are electrically connected with a detector, and the detector is electrically connected with a water supplementing controller.
5. The safe-to-use furnace steel structure of claim 4, wherein: a triangular groove reinforcing rib plate (37) is arranged between the lower surface of the water cooling groove (32) and the outer side wall of the furnace wall plate (1).
6. The safe-to-use furnace steel structure of claim 5, wherein: side fastening screws (21) are arranged on the furnace wall plate (1) opposite to the two side edges of the cladding plate (16), and side screw holes are formed in the two side edges of the cladding plate (16); the side fastening screw rod (21) is arranged in the side screw rod hole in a penetrating way, and the outer end of the side fastening screw rod is provided with a side fastening nut (20); the two side edges of the cladding plate (16) are locked with the furnace wall plate (1) through side fastening screws (21) and side fastening nuts (20).
7. The safe-to-use furnace steel structure of claim 6, wherein: the inner surfaces of two side edges of the cladding plate (16) are provided with U-shaped clamping grooves extending along the length direction of the cladding plate (16), the furnace wall plate (1) opposite to the U-shaped clamping grooves is provided with clamping strips (22), the clamping strips (22) are matched with the U-shaped clamping grooves, and the side fastening screw rods (21) are arranged on the clamping strips (22).
8. The safe-to-use furnace steel structure of claim 7, wherein: the central fastening screw (18) and the side fastening screws (21) are flexible screws, the flexible screws comprise an inner frame and a rod body (23) sleeved outside the inner frame, and the inner frame comprises a top disc (24), a bottom disc (25) and a plurality of connecting strips (26); the connecting strips (26) are positioned between the top disc (24) and the bottom disc (25), are uniformly distributed in a ring shape around the axes of the top disc (24) and the bottom disc (25), and are welded with the top disc (24) and the bottom disc (25) respectively at two ends of the connecting strips (26); the center of the rod body (23) is provided with a rod hole, and the rod hole is sleeved outside the connecting strip (26); the upper end of the rod body (23) is welded with the upper ends of the top disc (24) and the connecting strip (26), and the lower end of the rod body (23) is welded with the lower end of the connecting strip (26); the central fastening nut (19) and the side fastening nuts (20) are T-shaped nuts, and triangular rib plates (27) are arranged between the upper surface of the lower section of the T-shaped nuts and the outer side surface of the upper section of the T-shaped nuts.
9. The safe-to-use furnace steel structure of claim 8, wherein: the surfaces of the folded edges (15) opposite to the folded edges (15) and the surfaces of the folded edges (15) opposite to the cladding plate (16) are provided with mutually meshed key teeth extending in the transverse direction.
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| CN202110755827.3A CN113465388B (en) | 2021-07-05 | 2021-07-05 | Furnace body steel construction safe in utilization |
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| CN102444920A (en) * | 2010-09-30 | 2012-05-09 | 张薰雅 | Improved structure of furnace body |
| CN202885566U (en) * | 2012-10-24 | 2013-04-17 | 深圳市石金科技有限公司 | High temperature furnace cooling system |
| CN103615902A (en) * | 2013-12-19 | 2014-03-05 | 山东理工大学 | Water-cooling type hearth plate of petroleum coke tank-type calcining furnace |
| CN206019354U (en) * | 2016-08-25 | 2017-03-15 | 天津泰利信碳素制品股份有限公司 | Calcining furnace base plate water cooling plant |
| CN109563556A (en) * | 2016-08-23 | 2019-04-02 | 杰富意钢铁株式会社 | Siding is used in furnace body protection |
| CN111412751A (en) * | 2020-04-26 | 2020-07-14 | 广东职业技术学院 | Kiln heat sink |
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2021
- 2021-07-05 CN CN202110755827.3A patent/CN113465388B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102444920A (en) * | 2010-09-30 | 2012-05-09 | 张薰雅 | Improved structure of furnace body |
| CN202885566U (en) * | 2012-10-24 | 2013-04-17 | 深圳市石金科技有限公司 | High temperature furnace cooling system |
| CN103615902A (en) * | 2013-12-19 | 2014-03-05 | 山东理工大学 | Water-cooling type hearth plate of petroleum coke tank-type calcining furnace |
| CN109563556A (en) * | 2016-08-23 | 2019-04-02 | 杰富意钢铁株式会社 | Siding is used in furnace body protection |
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Effective date of registration: 20230424 Address after: 233000 Huaiyuan Economic Development Zone, Bengbu City, Anhui Province Applicant after: ANHUI XINGYONG ELECTROMECHANICAL EQUIPMENT CO.,LTD. Address before: 312000 Industrial Agglomeration Area of Sanjie Town, Shengzhou City, Shaoxing City, Zhejiang Province Applicant before: Shengzhou Yinkang Machinery Co.,Ltd. |
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Denomination of invention: A safe furnace steel structure for use Granted publication date: 20230516 Pledgee: Agricultural Bank of China Huaiyuan County Branch Pledgor: ANHUI XINGYONG ELECTROMECHANICAL EQUIPMENT CO.,LTD. Registration number: Y2024980008198 |