Novel stokehole tapping machine connecting method

Abstract

The invention discloses a novel stokehole tapping machine connecting method which comprises the following steps: improving a trolley of a stokehole tapping machine, expanding a precursor thread hole into six unthreaded holes with the diameter of 60mm, and expanding to form four unthreaded holes with the diameter of 33mm; and the trolley is connected with the transition connecting plate. According to the tapping machine, previous threaded connection or welding fixation is changed into opposite threading connection, bolt threads cannot be damaged, in addition, the transition connecting plate has a position limiting effect on the tapping machine body and the base, part of impact force of the tapping machine can be counteracted, and the tapping machine can be installed more stably.

Description

Technical Field

[0001] The invention relates to the field of blast furnace front opening machines, and in particular to a novel blast furnace front opening machine connection method. Background Art

[0002] The main function of the blast furnace tapping machine is to open the tapping hole every time the blast furnace taps iron. The performance and efficiency of the tapping machine directly affect the normal production of the blast furnace. Maintaining the normal operation of the tapping machine is crucial to the stable operation of the blast furnace.

[0003] However, during the use of the furnace opening machine, due to the use of bolt connections, problems such as bolt loosening and thread damage are prone to occur. Although it can be reinforced by welding, desoldering and falling off also bring impacts to production.

[0004] Therefore, it is necessary to develop a new type of furnace opening machine connection method to overcome the above problems. Summary of the invention

[0005] Purpose of the invention: In view of the shortcomings and defects of the prior art, the present invention provides a new method for connecting a furnace-front opening machine, which changes the previous wire planting connection or welding fixation into a threaded connection, so that the bolt threads will not be damaged. In addition, the transition connecting plate has a position limiting function for the opening machine body and the base, which can offset part of the impact force of the opening machine, and the opening machine is installed more stably.

[0006] Technical solution: A novel method for connecting a furnace opening machine in front of the invention is characterized in that: the trolley of the furnace opening machine is improved, the original wire thread hole is expanded into 6 Φ60mm light holes, and 4 Φ33mm light holes are expanded and opened; the trolley is connected to the transition connecting plate.

[0007] Among them, when the first Φ33mm light hole is opened, it is opened 165mm outward and 65mm to the right of the Φ60mm light hole.

[0008] After the first Φ33mm light hole is opened, the center of the hole is positioned, 490mm forward and 490mm inward, and the remaining three Φ33mm light holes are opened in sequence.

[0009] The four Φ33 mm light holes are arranged in a rectangular array.

[0010] Wherein, the furnace front opening machine is a blast furnace furnace front opening machine.

[0011] The trolley is connected to the transition connecting plate by 6 M60*130 bolts passing through Φ60mm light holes.

[0012] The transition connecting plate is connected to the trolley through 4 M30*130 bolts passing through a Φ33mm hole.

[0013] Wherein, the M60*130 bolts are not reinforced by welding.

[0014] Wherein, the M30*130 bolts are not reinforced by welding.

[0015] Wherein, the transition connecting plate is made of a steel plate with a thickness of 50 mm.

[0016] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages: the present invention changes the previous planting wire connection or welding fixation into a through-wire connection, so the bolt threads will not be damaged. In addition, the transition connecting plate has a position limiting function on the opening machine body and the base, which can offset part of the impact force of the opening machine, and the opening machine is installed more stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention;

[0018] In the figure, 1 is a Φ60mm light hole; 2 is a Φ33mm light hole. DETAILED DESCRIPTION

[0019] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0020] The novel connection method of the furnace opening machine of the present invention improves the trolley of the furnace opening machine, expands the original wire thread hole into 6 Φ60mm light holes 1, and expands to open 4 Φ33mm light holes 2; the trolley is connected to the transition connecting plate. When the first Φ33mm light hole 2 is opened, it is opened 165mm outward and 65mm to the right of the Φ60mm light hole 1. After the first Φ33mm light hole 2 is opened, it is positioned at the center of this hole, 490mm forward and 490mm inward, and the remaining 3 Φ33mm light holes 2 are opened in sequence. The 4 Φ33mm light holes 2 are arranged in a rectangular array.

[0021] The furnace opening machine of the present invention is a furnace opening machine for a blast furnace. The trolley is connected to the transition connecting plate through 6 M60*130 bolts passing through a Φ60mm light hole 1. The transition connecting plate is connected to the trolley through 4 M30*130 bolts passing through a Φ33mm light hole 2. The M60*130 bolts are not reinforced by welding. The M30*130 bolts are not reinforced by welding. The transition connecting plate is made of a steel plate with a thickness of 50mm.

[0022] The 6 M24*2 thread holes of the original bolt holes installed on the opening machine trolley are expanded into 6 Φ60 light holes. According to the original positioning of the front bolt hole, 165 outward and 65 to the right, a light hole with a diameter of Φ33 is opened. Then, according to the center of the light hole with a diameter of Φ33, 490 degrees forward and 490 degrees inward are positioned in a rectangular array to open 3 light holes with a diameter of Φ33, for a total of 4 light holes. Then use 50mm thick 45# steel plate to process a transition connecting plate. The connection form is changed from the opening machine and the trolley being fixed by 6 M24*80 planted thread bolts to the opening machine being fixed to the transition connecting plate by 6 M60*130 through-hole high-strength bolts. The transition connecting plate is then connected to the trolley by 4 M30*130 through-hole high-strength bolts. In this way, the previous planted thread connection or welding fixation is changed to through-thread connection, and the bolt threads will not be damaged. In addition, the transition connecting plate has a position limiting function on the opening machine body and the base, which can offset part of the impact force of the opening machine, and the opening machine is installed more firmly.

Claims

1. A new type of furnace opening machine connection method, characterized in that: The trolley of the furnace opening machine is improved, the original wire thread hole is expanded into 6 Φ60mm light holes (1), and 4 Φ33mm light holes (2) are opened; the trolley is connected to the transition connecting plate.

2. The novel furnace opening machine connection method according to claim 1 is characterized in that: When the first Φ33mm light hole (2) is opened, it is opened 165mm outward and 65mm to the right of the Φ60mm light hole (1).

3. The novel furnace opening machine connection method according to claim 2 is characterized in that: After the first Φ33 mm light hole (2) is opened, the remaining three Φ33 mm light holes (2) are opened in sequence, 490 mm forward and 490 mm inward, with the center of the hole positioned.

4. The novel furnace opening machine connection method according to claim 3 is characterized in that: The four Φ33 mm light holes (2) are arranged in a rectangular array.

5. The novel furnace opening machine connection method according to any one of claims 1 to 4, characterized in that: The furnace front opening machine is a blast furnace furnace front opening machine.

6. The novel furnace opening machine connection method according to claim 5 is characterized in that: The trolley is connected to the transition connecting plate by means of 6 M60*130 bolts passing through the Φ60mm light hole (1).

7. The novel furnace opening machine connection method according to claim 6 is characterized in that: The transition connecting plate is connected to the trolley by means of four M30*130 bolts passing through the Φ33mm light hole (2).

8. The novel furnace opening machine connection method according to claim 6 is characterized in that: The M60*130 bolts are not reinforced by welding.

9. The novel furnace opening machine connection method according to claim 7 is characterized in that: The M30*130 bolts are not reinforced by welding.

10. The novel furnace opening machine connection method according to claim 5 is characterized in that: The transition connecting plate is made of a steel plate with a thickness of 50 mm.

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