Blast furnace casting house main channel refractory material pouring device and pouring method

Abstract

The invention relates to the field of blast furnace casting house main channel construction equipment, in particular to a blast furnace casting house main channel refractory material pouring device and a pouring method, and the device and the method can greatly reduce manpower use and improve the main channel refractory material pouring efficiency. A discharge port of the material distribution elephant trunk is opened and closed through a material distribution control mechanism, the stirring barrel is arranged on the supporting frame and comprises a sliding rail, and the supporting frame is arranged on the sliding rail in a sliding mode; the material distribution elephant trunk is arranged in pairs, and the material outlets of each pair of material distribution elephant trunk are symmetrically formed in the two sides of the sliding rail. The method is particularly suitable for a blast furnace casting house main runner refractory material pouring process.

Description

Technical Field

[0001] The invention relates to the field of main ditch construction equipment for a blast furnace iron-making site, and in particular to a refractory casting device and a casting method for the main ditch of a blast furnace iron-making site. Background Art

[0002] At present, in the method of pouring refractory materials in the main trench of the blast furnace iron-making yard, generally, a support frame is first set near the main trench to be constructed, and then a mixing drum is set on the support frame. Subsequently, the castable is set in the mixing drum to realize the preparation of the castable. Subsequently, the output of the castable in the mixing drum is realized by controlling the opening and closing of the material outlet of the distribution chute connected to the bottom of the mixing drum. However, due to the lack of the mobile function of this device, in actual use, the castable as a whole also needs to be manually transported to the main trench for manual pouring, which has low construction efficiency, long operation cycle, labor-consuming and time-consuming, and is uneconomical and unreasonable. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a blast furnace iron-making yard main ditch refractory casting device and casting method which greatly reduces the use of manpower and improves the main ditch refractory casting efficiency.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a refractory casting device for the main ditch of a blast furnace iron-making yard, including a distribution chute, the feed port of the distribution chute is connected to the outlet at the bottom of a mixing drum, the discharge port of the distribution chute is opened and closed by a distribution control mechanism, and the mixing drum is arranged on a support frame, including a sliding track, and the support frame is slidably arranged on the sliding track; the distribution chutes are arranged in pairs, and the discharge ports of each pair of distribution chutes are symmetrically arranged on both sides of the sliding track.

[0005] Furthermore, the material distribution control mechanism includes a hydraulic control system, a material distribution control valve hydraulic cylinder and a material distribution control valve. The material distribution control valve is arranged at the material distribution port of the material distribution chute to realize the opening and closing of the material distribution port. The material distribution control valve is connected to the hydraulic control system through the material distribution control valve hydraulic cylinder.

[0006] Furthermore, the material distribution control valves and the material outlets of the material distribution chute are arranged in a one-to-one correspondence, and each material distribution control valve is connected to the hydraulic control system via its own material distribution control valve hydraulic cylinder.

[0007] Furthermore, the outlet direction of the material distribution chute is vertically downward, the material distribution control valve is a flat plate structure, and the material distribution control valve is closely arranged at the bottom of the material distribution chute.

[0008] Furthermore, each pair of material distribution chutes is in an inverted V-shaped structure, and each pair of material distribution chutes shares a same feed inlet and is connected to the outlet at the bottom of the mixing drum.

[0009] Furthermore, a driving wheel and a driven wheel are arranged at the bottom of the support frame, the support frame is arranged on a sliding track through the driving wheel and the driven wheel, and the driving wheel is connected to the driving motor.

[0010] Furthermore, a stirring impeller is arranged in the stirring drum.

[0011] Furthermore, an impeller motor is included, and the rotating shaft of the stirring impeller is connected to the output shaft of the impeller motor.

[0012] The method for pouring refractory materials in the main trench of a blast furnace iron-making site comprises the following steps:

[0013] a. First, use the casthouse crane to lift the castable material into the mixing drum of the casting device;

[0014] b. Then, add water into the mixing drum and start the impeller motor to allow the impeller to stir the castable;

[0015] c. After the mixing is completed, the hydraulic control system is operated to drive the hydraulic cylinder of the material distribution control valve on the left to open the material distribution control valve on the left for material distribution. After the material distribution is completed, the hydraulic cylinder of the material distribution control valve on the left is operated again to close the material distribution control valve on the left; then the hydraulic cylinder of the material distribution control valve on the right is operated to open the material distribution control valve on the right for material distribution. After the material distribution is completed, the hydraulic cylinder of the material distribution control valve on the right is operated to close the material distribution control valve on the right;

[0016] d. Operate the drive motor to drive the drive wheel to rotate, move the casting device forward along the sliding track, and after moving into position, operate according to step c to realize the material distribution of the sliding track. After the material distribution is completed, continue to operate the drive motor to move forward, and repeat this cycle until the casting of the main ditch casting material is completed.

[0017] The beneficial effects of the present invention are as follows: in actual use, a sliding track is first set along the extension direction of the main ditch of the blast furnace iron-casting yard. Subsequently, during the movement of the casting device along the direction of the sliding track, the casting material in the mixing drum can be transported to the position required for casting through the distribution chute in real time. During the above-mentioned casting process, the casting device can continuously move forward, so that the casting can be carried out along the main ditch of the blast furnace iron-casting yard, thereby eliminating manual casting and improving casting efficiency. The present invention is particularly suitable for the refractory casting process of the main ditch of the blast furnace iron-casting yard. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of an embodiment of the pouring device of the present invention.

[0019] Figure 2 yes Figure 1 Top view of the .

[0020] Figure 3 yes Figure 1 Bottom view of .

[0021] Marked in the figure are: mixing drum 1, impeller motor 2, mixing impeller 3, support frame 4, material distribution chute 5, material distribution control valve 6, material distribution control valve hydraulic cylinder 7, hydraulic control system 8, drive motor 9, drive wheel 10, driven wheel 11, and sliding track 12. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0023] like Figure 1 , Figure 2 and Figure 3 The figure shows an embodiment of a refractory casting device for the main trench of a blast furnace iron-making yard. The support frame 4 is an integral load-bearing body, which is welded by steel bars. The side wall of the mixing drum 1 is fixedly arranged on the top of the support frame 4, and the support frame 4 supports the mixing drum 1. A support rod is arranged in the mixing drum 1 along the diameter direction, and the impeller motor 2 is arranged on the support rod, wherein the output shaft of the impeller motor 2 extends downward and passes through the support rod and then is connected to the stirring impeller 3 below the support rod. The impeller motor 2 rotates and drives the stirring impeller 3 to rotate, and the rotating stirring impeller 3 realizes the stirring of the castable.

[0024] An outlet is provided downward at the center of the bottom of the mixing drum 1, and the outlet is connected to the feed port of the distribution chute 5. There are two distribution chutes 5, and the two distribution chutes 5 share one feed port, and the two distribution chutes 5 form an inverted V-shaped structure. The outlet directions of the two distribution chutes 5 are vertically downward. In order to facilitate the flow of the castable, the horizontal plane position of the distribution chute 5 is lower than the horizontal plane position of the feed port of the distribution chute 5. The distribution control valve 6 is used to seal the discharge port of the distribution chute 5 tightly. When one of the two distribution chutes 5 needs to flow out the castable, it is only necessary to remove the corresponding distribution control valve 6. The distribution control valve 6 is a flat plate structure, and the distribution control valve 6 is connected to the distribution control valve hydraulic cylinder 7 through a control rod, and the distribution control valve hydraulic cylinder 7 is connected to the hydraulic control system 8. During actual driving, the hydraulic control system 8 controls the material cloth control valve hydraulic cylinder 7, and then controls the extension and retraction of the control rod. The retractable control rod guides the material cloth control valve 6 to be closely arranged at the discharge port of the material cloth chute 5 to stop feeding, or guides the material cloth control valve 6 away from the discharge port of the material cloth chute 5 to achieve feeding.

[0025] A driving wheel 10 and a driven wheel 11 are provided at the bottom of the support frame 4. The support frame 4 is rollingly arranged on the sliding track 12 through the driving wheel 10 and the driven wheel 11. The driving wheel 10 is connected to the driving motor 9. The driving motor 9 drives the driving wheel 10 to rotate, so as to realize the movement of the support frame 4 along the sliding track 12. When the sliding track 12 is set, it is set along the extension direction of the main ditch of the blast furnace iron-making field, so as to realize the pouring device to realize pouring during the moving process, which saves manpower and greatly improves the construction efficiency.

[0026] The specific pouring steps can refer to the following steps: a. First, use the iron-casting yard crane to lift the castable material into the mixing drum 1 of the pouring device; b. Then, add water to the mixing drum 1, and start the impeller motor 2 to let the stirring impeller 3 stir the castable material; c. After the stirring is completed, operate the hydraulic control system 8 to drive the left-side distribution control valve hydraulic cylinder 7 to open the left-side distribution control valve 6 for distribution. After the distribution is completed, operate the left-side distribution control valve hydraulic cylinder 7 again to close the left-side distribution control valve 6; then operate the right-side distribution control valve hydraulic cylinder 7 to open the right-side distribution control valve 6 for distribution. After the distribution is completed, operate the right-side distribution control valve hydraulic cylinder 7 to close the right-side distribution control valve 6; d. Operate the drive motor 9 to drive the drive wheel 10 to rotate, and move the pouring device forward along the sliding track 12. After moving into place, operate according to step c to realize the distribution of the sliding track 12. After the distribution is completed, continue to operate the drive motor 9 to move forward, and repeat this cycle until the main ditch castable is poured.

Claims

1. A refractory casting device for the main trench of a blast furnace iron-making site, comprising a distribution chute (5), wherein a feed inlet of the distribution chute (5) is connected to an outlet at the bottom of a mixing drum (1), and a discharge outlet of the distribution chute (5) is opened and closed by a distribution control mechanism, wherein the mixing drum (1) is arranged on a supporting frame (4), and characterized in that: It comprises a sliding track (12), on which the supporting frame (4) is slidably arranged; The material distribution chutes (5) are arranged in pairs, and the material outlets of each pair of material distribution chutes (5) are symmetrically arranged on both sides of the sliding track (12).

2. The refractory casting device for the main ditch of the blast furnace iron-making site according to claim 1, characterized in that: The material distribution control mechanism comprises a hydraulic control system (8), a material distribution control valve hydraulic cylinder (7) and a material distribution control valve (6); the material distribution control valve (6) is arranged at the material distribution outlet of the material distribution chute (5) to realize the opening and closing of the material distribution outlet; the material distribution control valve (6) is connected to the hydraulic control system (8) via the material distribution control valve hydraulic cylinder (7).

3. The refractory casting device for the main trench of a blast furnace iron-making site according to claim 2, characterized in that: The material distribution control valves (6) and the material outlets of the material distribution chute (5) are arranged in a one-to-one correspondence, and each material distribution control valve (6) is connected to a hydraulic control system (8) via a respective material distribution control valve hydraulic cylinder (7).

4. The refractory casting device for the main ditch of the blast furnace iron-making site according to claim 3, characterized in that: The outlet direction of the material distribution chute (5) is vertically downward, and the material distribution control valve (6) is a flat plate structure. The material distribution control valve (6) is closely arranged at the bottom of the material distribution chute (5) outlet.

5. The refractory casting device for the main ditch of a blast furnace iron-making site according to any one of claims 1 to 4, characterized in that: Each pair of material distribution chutes (5) is in an inverted V-shaped structure, and each pair of material distribution chutes (5) shares a common material feed inlet and is connected to an outlet at the bottom of the mixing drum (1).

6. The refractory casting device for the main ditch of a blast furnace iron-making site according to any one of claims 1 to 4, characterized in that: A driving wheel (10) and a driven wheel (11) are arranged at the bottom of the support frame (4); the support frame (4) is arranged on a sliding track (12) via the driving wheel (10) and the driven wheel (11); and the driving wheel (10) is connected to a driving motor (9).

7. The refractory casting device for the main ditch of a blast furnace iron-making site according to any one of claims 1 to 4, characterized in that: A stirring impeller (3) is arranged in the stirring drum (1).

8. The refractory casting device for the main ditch of the blast furnace iron-making site according to claim 7, characterized in that: It comprises an impeller motor (2), and the rotating shaft of the stirring impeller (3) is connected to the output shaft of the impeller motor (2).

9. A method for casting refractory materials in the main ditch of a blast furnace iron-casting house, comprising the device for casting refractory materials in the main ditch of a blast furnace iron-casting house according to any one of claims 1 to 8, characterized in that: The steps include: a. First, the castable material is hoisted into the mixing drum (1) of the casting device using a casthouse crane; b. Subsequently, water is added into the mixing drum (1), and the impeller motor (2) is started to allow the mixing impeller (3) to mix the castable; c. After the mixing is completed, the hydraulic control system (8) is operated to drive the left material distribution control valve hydraulic cylinder (7) to open the left material distribution control valve (6) for material distribution. After the material distribution is completed, the left material distribution control valve hydraulic cylinder (7) is operated again to close the left material distribution control valve (6); then, the right material distribution control valve hydraulic cylinder (7) is operated to open the right material distribution control valve (6) for material distribution. After the material distribution is completed, the right material distribution control valve hydraulic cylinder (7) is operated to close the right material distribution control valve (6); d. Operate the drive motor (9) to drive the drive wheel (10) to rotate, and move the casting device forward along the sliding track (12). After the device is moved into position, operate according to step c to achieve material distribution on the sliding track (12). After the material distribution is completed, continue to operate the drive motor (9) to move forward, and repeat this cycle until the casting of the main ditch casting material is completed.

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