Scrap appraisal of special equipment

Special equipment scrapping refers to the scrapping of special equipment that is no longer used, that is, the equipment is deleted from the ledger or register. Once a safety accident occurs in special equipment, it will cause unpredictable consequences. In order to ensure the safety of personnel and property, it must be scrapped.

As an independent third-party appraisal agency under Guoke Holdings, Zhongke Testing has the qualifications for fixed asset scrapping appraisal. It can organize technical personnel to evaluate the assets to be scrapped and evaluate and issue a special equipment scrapping appraisal report based on the list of assets to be scrapped and relevant information provided by the client.

(1) Special equipment has serious accident risks, including the following situations and should be scrapped:

1, produced without a license, eliminated by the state, has been scrapped or has reached the scrapping conditions, and continues to be used;

2, continues to be used without supervision and inspection or has failed inspection and testing;

3, safety The accessories and safety protection devices are missing or malfunctioning and continue to be used;

4. There has been an accident or there is an obvious fault, but the product is not fully inspected and the potential for accidents has been eliminated before continuing to be used;

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1. Visual inspection: Appearance inspection through direct observation or with the help of simple tools to find obvious defects or abnormalities in the equipment.

2. Non-destructive testing: Using physical properties such as sound, light, and magnetism to detect the interior or surface of the equipment without damaging the equipment.

3. Mechanical property testing: Conduct mechanical property testing on the materials and parts of the equipment to ensure that they meet the design requirements.

4. Functional testing: Simulate or actually run the operation of the device to detect whether its function is normal.

During a periodic inspection of elevators in a residential area, it was found that the wire rope of one of the elevators was severely corroded. A large amount of rusty ash was scattered around the traction sheave, reverse sheave, counterweight guide wheel and traction machine. The amount of wear on the wire rope exceeded the standard, and the traction sheave was severely worn. In order to confirm whether the elevator wire rope has repair value, our company was entrusted to evaluate whether the elevator wire rope has reached the scrap state.

identification and analysis results:

The identification and analysis expert team investigated the relevant situation, inspected and took photos of the identification objects, and comprehensively analyzed them through special testing and on-site investigation After analysis, the following suggestions and conclusions were made:

The elevator shaft is separated from the kitchen of the community by a wall, and the pit has also accumulated water. Compared with other shafts, the environment is humid. Moreover, the maintenance unit has been lacking in rust removal and maintenance of the steel wire rope, resulting in serious corrosion of the steel wire rope. Due to the complex stress of the steel wire rope, there is stress concentration in the bending part, and it is subjected to alternating stresses such as tension, extrusion force and shear force for a long time. In addition, the diameter of the steel wire rope is reduced due to corrosion and wear, and the tensile yield strength is reduced, reaching the scrap standard, and there is a hidden danger of brittle fracture.

is recommended to apply for scrap disposal.

1. Equipment list sorting: First, it is necessary to sort out the list of all equipment, including the name, model, specification, quantity, purchase date and other information of the equipment.

2. Equipment condition assessment: Evaluate the condition of the equipment based on its usage and maintenance records. It can be carried out through regular inspections, random inspections, etc.

3. Expert appraisal: For some highly professional equipment, experts in related fields need to be invited for appraisal. Experts can evaluate the condition of the equipment based on its performance testing, technical indicators and other factors.

4. Processing decision making: Based on the identification results of the device, make corresponding processing decisions. If the equipment can be repaired or upgraded, it needs to be processed accordingly; if the equipment cannot continue to be used or the repair cost is too high, it needs to be scrapped.

5. Execution of equipment scrapping: Dispose of scrapped equipment in accordance with relevant regulations and procedures. For example, recycling, dismantling, and destruction of equipment. At the same time, appropriate record and file management work needs to be done.